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.breadcrumb>.active{
color:#777
}
#footer .container{
padding:10px
}
#footer{
background-color:#eeeeee;
width:100%;
}
.container ul{
align-items: center;
justify-content: center;
flex-wrap: wrap;
}
.list-inline {
padding-left: 0;
list-style: none;
}
.list-inline>li{
display:inline-block;
padding-left:5px;
padding-right:5px
}
#footer-pages li{
margin:10px 0;
padding:0 20px;
}
#footer-pages li:last-child{
border-right:0
}
#footer-social a{
text-decoration:none;
color:#333;
border:1px solid #333;
border-radius:5px;
padding:10px 15px;
margin-right:20px;
}
.feedback-box {
padding:5px;
width: 100%;
position: fixed;
bottom: 0;
left: 0;
right: 0;
vertical-align: middle;
text-align: center;
background: white;
font-family: 'Source Sans Pro', Consolas, "Liberation Mono", Menlo, Courier, monospace;
font-weight: bold;
font-size: 14px;
color: #ffffff;
cursor: pointer;
z-index: 10;
border: solid 1px rgba(0, 0, 0, 0.12);
}
.feedback-box > a:hover {
color: blue;
}
.tutorial-block-ham{
display:none;
}
.show{
display:block;
width:100%;
border-left: solid 1px rgba(0, 0, 0, 0.12);
}
.hide{
display:none
}
pre{
white-space: pre-wrap;
}
.highlight{
display:block;
font-size:13px;
color:#333333;
padding : 15px;
background-color: #F8F8F8;
border: 1px solid #ccc;
border-radius:4px;
overflow:scroll;
white-space: pre-wrap;
}
.img-responsive{
max-width:100%;
}
.inline{
display:inline;
}
.c1{
color:green;
}
.c{
color:green;
}
/* media query related css */
@media( max-width: 500px){
.sing-in-box{
width: 75%;
}
.gtp{
padding:2px;
font-size: 12px;
}
}
@media( max-width: 830px){
.blog-main{
margin: auto;
}
.list-box{
display:block;
}
.panel-body{
overflow: hidden;
}
#tabpanel{
padding:0px;
}
}
@media( max-width: 950px){
#sidebar{
display: block;
}
.sidebar-menu{
flex-direction: column;
align-items: center;
}
#nav-sidebar > ul.login-links {
flex-direction: unset;
align-items: center;
justify-content: center;
flex-wrap: wrap;
}
.header-items{
color: rgba(0, 0, 0, 0.7);
}
.navbar-collapse{
display:none;
}
.sidebar-toggle-btn{
display: block;
float:right;
font-size: 25px;
margin: 15px 15px 0px 0px;
border: navajowhite;
border-radius:5px;
color:grey;
background:transparent;
}
.ib-headerbar-nav{
display: none;
}
header{
justify-content: space-between;
}
.sidebar-menu > li {
height: 50px;
width: 100;
text-align: center;
display: flex;
align-items: center;
justify-content: center;
margin:3px 0px;
}
.sidebar-menu > li.looking-to-hire {
position: relative;
left: -10px;
}
.sidebar-menu > li a {
display: inline-block;
padding:6px 12px;
border-radius: 5px;
font-weight: bold;
}
.sidebar-menu .feature a{
width: 100%;
padding: 10px 0px;
}
.section-six .box-b{
order: -1;
}
.tutorial-links{
display:block;
height: 55px;
border-bottom: solid 1px rgba(0, 0, 0, 0.12);
}
.article-slide{
flex:none;
}
.tutorial-block{
display: none;
}
.notification{
background:#efefef;
}
.svg_down_arrow{
left:-60px;
top: -7px;
}
.tutorial-block-ham{
display:inline-block;
float:left;
margin-right:20px;
}
.thead{
width:200px;
margin:auto;
}
.tutorial-heading .slide-title {
margin-bottom: 15px;
}
}
@media( max-width: 1200px){
h2 {
font-size: 26px;
}
.tutorial-list{
width:auto;
}
.tutorial-block{
width: 220px;
}
.article-slide{
padding:10px 0px 20px 0px;
width:100%;
}
}
@media( max-width: 1220px)
{
.hidden-md{
display:none;
}
}
@media(min-width:992px){
body{
margin-bottom:320px
}
#footer{
height:220px
}
}
/* TOPIC PAGE */
h2 {
margin-top: 20px;
margin-bottom: 10px;
}
.container .jumbotron, .container-fluid .jumbotron {
border-radius: 6px;
}
.jumbotron {
margin-bottom: 30px;
color: inherit;
background-color: #eeeeee;
}
.mcq-banner {
position: relative;
padding: 6px 60px 22px;
}
.mcq-banner .subtext {
font-size: 1em;
}
.subtext {
color: #999999;
}
.row{
margin-top: -1rem;
margin-left: -15px;
margin-right: -15px;
}
.col-md-4{
padding-left: 15px;
padding-right: 15px;
}
.panel{
background-color: #fff;
}
.panel > .panel-heading{
background-color: #fff;
padding: 18px;
border-bottom: 1px solid #ddd;
border-top-right-radius: 3px;
border-top-left-radius: 3px;
}
.panel-body{
padding: 15px;
}
.tutorial-heading {
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-ms-flex-direction: column;
flex-direction: column;
}
.article {
padding: 3px;
}
.btn-default.outline {
padding: 6px 12px;
margin-top: -6px;
border: solid 1px #63b1c6;
color: #0099cc;
}
.btn-default.text {
font-size: 14px;
font-weight: bold;
font-style: normal;
font-stretch: normal;
line-height: normal;
letter-spacing: 0.1px;
color: #63b1c6;
}
.table{
width: 100%;
border-collapse: collapse;
border-spacing: 0;
}
.table > thead > tr > th,
.table > thead > tr > td,
.table > tbody > tr > th,
.table > tbody > tr > td,
.table > tfoot > tr > th,
.table > tfoot > tr > td {
padding: 8px;
line-height: 1.42857143;
vertical-align: top;
border-top: 1px solid #ddd;
}
th{
text-align: left;
font-family: 'Source Sans Pro', Helvetica, arial, nimbussansl, liberationsans, freesans, clean, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
}
td, th{
font-size: 15px;
}
.table > thead > tr > th {
vertical-align: bottom;
border-bottom: 2px solid #ddd;
}
a{
color: #337ab7;
background-color: transparent;
text-decoration: none;
}
.table > thead:first-child > tr:first-child > th, .table > thead:first-child > tr:first-child > td {
border-top: 0;
}
.example-problems, .example-problem, .assignment-list, .primer-problems, .primer-problem{
-webkit-box-shadow: 0 1.5px 4px rgba(0, 0, 0, 0.24), 0 1.5px 6px rgba(0, 0, 0, 0.12);
box-shadow: 0 1.5px 4px rgba(0, 0, 0, 0.24), 0 1.5px 6px rgba(0, 0, 0, 0.12);
border: 0;
}
.assignment-list{
position: relative;
overflow: visible;
}
.assignment-list .collapse {
overflow-x: scroll;
}
.assignment-list .panel-heading {
overflow: visible;
}
.assignment-list .panel-heading {
background-color: #63b1c6;
color: #FFFFFF;
}
.assignment-list thead {
background-color: #F5FAFD;
color: #999999;
border-radius: 0;
font-size: 12px;
}
.primer-problem > a > .panel-body, .example-problem > a > .panel-body{
height: auto;
}
.topic-wrapper .panel-body{
padding: 10px 0px;
}
.topic-wrapper{
padding: 0px;
margin-bottom: 20px;
border-radius: 4px;
}
.topic-ct{
-webkit-box-shadow: 0 1.5px 4px rgba(0, 0, 0, 0.24), 0 1.5px 6px rgba(0, 0, 0, 0.12);
box-shadow: 0 1.5px 4px rgba(0, 0, 0, 0.24), 0 1.5px 6px rgba(0, 0, 0, 0.12);
border: 0;
}
.tag-container span {
margin-top: 6px;
}
.problem-tags span {
display: inline-block;
background: #63b1c6;
padding: 2px 8px;
border-radius: 5px;
font-size: 16px;
margin-right: 4px;
color: #FFFFFF;
}
.problem-tags span.fa{
padding: 0px;
}
@media only screen and (max-width: 760px) {
.dashboard-topics table, .dashboard-topics thead, .dashboard-topics tbody, .dashboard-topics th,
.dashboard-topics td,.dashboard-topics tr {
display: block;
}
.dashboard-topics thead tr {
position: absolute;
top: -9999px;
left: -9999px;
}
.dashboard-topics tr {
border: 1px solid #ccc;
}
.dashboard-topics td {
/* Behave like a "row" */
border: none;
border-bottom: 1px solid #eee;
position: relative;
padding-left: 50%;
}
.dashboard-topics td:before {
/* Now like a table header */
position: absolute;
/* Top/left values mimic padding */
top: 6px;
left: 6px;
width: 45%;
padding-right: 10px;
}
.dashboard-topics td:nth-of-type(1):before { content: "Title"; }
.dashboard-topics td:nth-of-type(2):before { content: "Difficulty"; }
.dashboard-topics td:nth-of-type(3):before { content: "Average time to complete"; }
.dashboard-topics td:nth-of-type(4):before { content: "Status"; }
.dashboard-topics td:nth-of-type(3){
height: 60px;
}
}
ul li a {
text-decoration: none;
font-family: 'Lato',sans-serif;
}
#footer {
display: flex;
justify-content: center;
background-color: #002222;
height: 100%;
}
.footer-section {
max-width: 1200px;
padding-top: 30px;
width: 100%;
}
.footer-logo {
max-width: 150px;
margin-left: 30px;
}
#footer ul {
list-style: none;
}
#footer li {
padding: 3px 0px;
}
#footer li a {
font-size: 14px;
padding-right: 15px;
color: #bbc6c5;
}
#footer-pages {
flex: 2.5;
padding: 0 20px 0 0;
}
#footer-pages div {
color: white;
font-size: 16px;
margin-left: 30px;
font-family: 'Lato',sans-serif;
}
#footer-pages ul {
display: flex;
flex-wrap: wrap;
margin-bottom: 3rem;
}
#footer-pages ul li {
flex: 0 0 33%;
}
#footer-pages-static-info {
flex: 1;
}
#footer-pages-static-info ul {
display: flex;
flex-wrap: no-wrap;
}
#footer-pages-static-info li {
flex: 0 0 50%;
}
#footer-pages-static-info li:first-child i {
padding: 6px 0px;
}
#footer-social {
display: flex;
flex-direction: column;
}
#footer-social div {
margin: 10px 20px 30px 0;
}
#footer-social span {
color: white;
}
.footer-topics__title {
color: white;
margin: 0 0 0 30px;
}
@media (max-width: 768px ){
.footer-section {
flex-direction: column;
}
#footer-pages ul li {
flex: 0 0 50%;
}
#footer-social {
flex-direction: row;
justify-content: center;
}
#footer-topics {
flex-direction: row;
}
}
.ib-topic-section__tutorials-container {
padding: 0 1rem;
}
.ib-topic-section__problem-tab {
background: #383E3F;
color: white;
display: flex;
margin-top: -1rem;
justify-content: space-between;
padding: 1.3rem 2rem;
flex-wrap: wrap;
align-items: center;
}
.ib-topic-section__topic-name {
font-size: 1.6rem;
}
.ib-topic-section__problems-goto {
border: 0.08rem solid white;
padding: 0.5rem 1rem;
border-radius: 0.4rem;
font-size: 0.8rem;
color: white;
margin-top: 0.5rem;
}
.ib-topic-sidebar__problems-redirection span {
font-size: 14px;
}
.ib-topic-section {
display: flex;
}
.ib-topic-section__content {
flex: 1;
width: 100%;
}
.ib-topic-section__sidebar {
height: 100vh;
flex: 0.25;
min-width: 25rem;
position: sticky;
top: 0;
width: 40rem;
background: #F3F6FC;
padding: 1rem 0 2rem 0;
}
.ib-topic-sidebar__section {
overflow-y: auto;
height: 100%;
padding: 1rem;
}
.ib-topic-sidebar__title {
margin: 0.5rem 0;
font-weight: 500;
}
.ib-topic-sidebar__checkpoint-problem-redirection {
display: flex;
justify-content: center;
margin: 1.3rem 0;
}
.ib-topic-sidebar__checkpoint-problem-jump {
background: #75AFC3;
padding: 0.3rem 1rem;
border-radius: 0.4rem;
display: flex;
}
.ib-topic-sidebar__checkpoint-problem-jump span {
font-size: 0.8rem;
color: white;
}
.header-nav-accordion__items-container {
padding: 1rem 2rem;
}
.ib-topic-sidebar__heading {
padding: 0.6rem;
font-size: 14px;
border: 0;
background: none;
}
.ib-topic-sidebar__heading:hover {
background: #e4eeff;
}
.ib-topic-sidebar__heading span {
position: absolute;
right: 1rem;
font-size: 0.8rem;
}
.ib-topic-sidebar__subheading {
font-size: 0.8rem;
}
.ib-topic-sidebar__fab {
display: none;
}
.ib-topic-sidebar__subheading::before {
content: '';
display: block;
height: 5px;
width: 5px;
background: #999999;
left: -20px;
top: 13.5px;
border-radius: 50%;
border: 1.5px solid white;
outline: 1px solid #999999;
padding: 1pxrem;
position: relative;
}
.ib-topic-sidebar__checkpoint-problem-redirection {
position: relative;
}
.ib-topic-sidebar__checkpoint-problem-divider {
background: #999999;
height: 1px;
width: 100%;
position: absolute;
transform: translateY(-50%);
top: 50%;
}
.ib-topic-sidebar__checkpoint-problem-jump {
display: flex;
background: #75AFC3;
padding: 0.3rem 1rem;
border-radius: 0.4rem;
z-index: 2;
}
@media only screen and (max-width: 768px) {
.ib-topic-section__sidebar {
position: fixed;
height: 70vh;
right: 1rem;
width: 20rem;
min-width: 20rem;
top: auto;
bottom: 4.5rem;
border-radius: 1rem;
z-index: 99;
}
.ib-topic-sidebar__fab {
display: block;
right: 1rem;
bottom: 1rem;
z-index: 100;
position: fixed;
background-color: white;
box-shadow: 0 0.8rem 2.4rem 0 rgba(252, 51, 79, 0.16);
border-radius: 50%;
padding: 0.5rem 0.8rem;
cursor: pointer;
border: 0;
}
.ib-topic-sidebar__fab span {
font-size: 1.4rem;
}
.ib-topic-sidebar__section-backdrop {
background: rgba(0,0,0,0.7);
height: 100%;
width: 100%;
position: absolute;
top: 0;
z-index: 97;
left: 0;
}
}
.image_container {
position: relative;
width: 75%;
height: 0;
max-width: 100%;
margin: 0 auto;
padding-bottom: 50%;
}
#admin_image img {
position: absolute;
left: 50%;
top: 50%;
right: auto;
bottom: auto;
transform: translate(-50%, -50%);
}
</style>
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</amp-analytics>
<amp-sidebar id="nav-sidebar" layout="nodisplay" side="left">
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<a href="/">
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</li>
<li class="feature">
<a href="/practice/" >
<span class="header-items">Practice</span>
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<li class="feature">
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<span class="user-score header-items">
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</ul>
<ul class="list-reset m0 p0 flex justify-center nowrap sidebar-menu login-links">
<li><a class="sign-in-link link" href="/users/sign_in/" >Log In</a></li>
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</ul>
</amp-sidebar>
<nav class="navbar navbar-inverse mit-header navbar-static-top">
<div class="container-nav">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
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</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav features">
<li id="practice_feature" class="feature ">
<a href="/practice/" >
<span class="user-score header-items">Practice</span>
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</li>
</ul>
<div class="nav navbar-nav hidden-xs hidden-sm hidden-md">
</div>
<ul class="nav navbar-nav navbar-right" id='welcome-page-nav' >
<li><a class="sign-in-link link" href="/users/sign_in/" >Log In</a></li>
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<button on="tap:nav-sidebar.toggle"
class="sidebar-toggle-btn caps">☰
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</ol>
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<div class="ib-topic-section__problem-tab ib-topic-section__problem-tab--v1"
data-ab-test-version="v1"
data-gtm-sub-product="track"
data-gtm-section="topic-header"
data-class="ib-topic-section__problem-tab--v1"
>
<h2 class="ib-topic-section__topic-name"> Bit Manipulation</h2>
<a
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class="ib-topic-section__problems-goto gtm-track-element"
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id="ib-topic-sidebar-link"
>
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Time Complexity
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How to Calculate Running Time?
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Asymptotic notations
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How to Calculate Time Complexity?
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Time Complexity Examples
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Relevance of time complexity
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Space Complexity
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Arrays
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Introduction to pointers in C/C++
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Arrays in programming - fundamentals
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Pointers and arrays
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Pointers and 2-D arrays
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Array Implementation Details
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Sorting Algorithms
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Insertion sort algorithm
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Merge sort algorithm
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QuickSort Algorithm
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Sort Implementation Details
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Selection Sort
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Bubble Sort
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Math
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Math Introduction
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Factorization
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Base number system
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Unary number system
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Binary number system
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Base conversions for base N
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Binary Search
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Binary Search Implementations and common errors
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Binary Search Algorithm
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Applications of Binary Search
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Beyond Sorted Array Binary Search
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Advantages and Disadvantages of Binary Search
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Strings
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For C / C++ users,
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For C / C++ users ( contd ),
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String Implementation Details
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Bit Manipulation
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What is Binary Number System?
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Understanding Data Types
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Bitwise Operators
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Bitwise Operators Examples
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Bitwise and Logical Operators
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Two Pointers
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TWO POINTERS
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Linked Lists
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Introduction to linked list
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Arrays vs Linked Lists
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Linked List Implementation
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Doubly linked list
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Doubly Linked List Implementation
</h5>
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Stacks And Queues
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Introduction to Stack
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Array implementation of Stack
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Linked List implementation of stack
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Stack Implementation Details
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Introduction to Queues
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Array implementation of Queues
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Linked List implementation of Queue
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Queue Implementation Details
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Backtracking
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Recursion basics - using factorial
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Complexity analysis of recursive programs
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Why recursion is not always good
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Time Complexity analysis of recursion
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Space complexity analysis of recursion
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Maze Traversal Algorithm Using Backtracking
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Graph Coloring Algorithm using Backtracking
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Hashing
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Introduction to hashing
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Key terms in Hashing
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Hashing Techniques
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Hashing Implementation Details
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Hashing Summary
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Heaps And Maps
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Why treemaps / heaps
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Heap and Map Implementation Details
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Heap Sort Algorithm
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Tree Data Structure
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Introduction to Tree Data Structure
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Binary Tree
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Binary Search Tree
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Implementation of BSTs
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<span> Jump to Level 7</span>
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Dynamic Programming
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Dynamic Programming Concept
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Dynamic Programming Examples
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Characteristics of Dynamic Programming
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Dynamic Programming Methods
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Applications
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FAQs
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Dynamic Programming Interview Questions
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Greedy Algorithm
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Greedy Algorithm Examples
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Bitwise Operators
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<p>As we discussed in the previous video, the numbers are stored in their binary representation in computers and every single digit 0 / 1 is called bit.<br>Most languages allow you to perform operations which are bitwise ( this statement will make much more sense when we look at the operator themselves ). It is a fast, primitive action directly supported by the processor, and is used to manipulate values for comparisons and calculations.</p>
<ul>
<li><a href="#c">Bitwise &</a></li>
<li><a href="#cplus">Bitwise |</a></li>
<li><a href="#java">Bitwise XOR</a></li>
<li><a href="#python">Bitwise NOT</a></li>
<li><a href="#c2">Right shift operator</a></li>
<li><a href="#cplus2">Left Shift Operator</a></li>
</ul>
<p> </p>
<div class="raw-html-embed"><div id="C"> 1. Bitwise AND:</div></div>
<p><i>Syntax:</i></p>
<pre><code class="language-plaintext hljs">A & B</code></pre>
<p><i>Values for bit combinations:</i></p>
<pre><code class="language-plaintext hljs"> a b a & b
------------------------
0 0 0
0 1 0
1 0 0
1 1 1</code></pre>
<p>In other words, <code>a & b = 0</code> unless <code>a = 1 and b = 1</code>.</p>
<p>What does A & B mean:</p>
<p>A & B implies <i><strong>a & b</strong> for all corresponding bits of A and B.</i></p>
<p>So, lets say,</p>
<pre><code class="language-plaintext hljs"> A = 21 ( 10101 ) and B = 6 ( 110 )
A & B =
1 0 1 0 1
& 0 0 1 1 0
------------------
0 0 1 0 0 = 4. </code></pre>
<div class="raw-html-embed"><div id="cplus"> 2. Bitwise OR: </div></div>
<p>Syntax :</p>
<pre><code class="language-plaintext hljs">A | B
</code></pre>
<p>Values for bit combinations</p>
<pre><code class="language-plaintext hljs"> a b a | b
------------------------
0 0 0
0 1 1
1 0 1
1 1 1
</code></pre>
<p>In other words, <code>a | b = 1</code> unless <code>a = 0 and b = 0</code></p>
<p>What does A | B mean :</p>
<p><code>A | B</code> implies <code><strong>a | b</strong></code> for all corresponding bits of A and B. So, lets say</p>
<pre><code class="language-plaintext hljs"> A = 21 ( 10101 ) and B = 6 ( 110 )
A | B =
1 0 1 0 1
| 0 0 1 1 0
------------------
1 0 1 1 1 = 23. </code></pre>
<div class="raw-html-embed"><div id="java"> 3. Bitwise XOR:</div></div>
<p>Syntax :</p>
<pre><code class="language-plaintext hljs">A ^ B
</code></pre>
<p>Values for bit a, b :</p>
<pre><code class="language-plaintext hljs"> a b a ^ b
------------------------
0 0 0
0 1 1
1 0 1
1 1 0</code></pre>
<p>In other words, <code>a ^ b = 1</code> when <strong>a and b are different</strong>.</p>
<p>What does A ^ B mean :</p>
<p>A ^ B implies a ^ b for all corresponding bits of A and B. So, lets say</p>
<pre><code class="language-plaintext hljs"> A = 21 ( 10101 ) and B = 6 ( 110 )
A ^ B =
1 0 1 0 1
^ 0 0 1 1 0
------------------
1 0 0 1 1 = 19.
</code></pre>
<div class="raw-html-embed"><div id="python"> 4. Bitwise NOT:</div></div>
<p>Syntax :</p>
<pre><code class="language-plaintext hljs">~A</code></pre>
<p>Values for bit a :</p>
<pre><code class="language-plaintext hljs"> a | ~a
-------|-------
0 | 1
1 | 0</code></pre>
<p>It's the <strong>inverse of the bit</strong>.</p>
<p>What does ~A mean</p>
<p>~A implies inverting every single bit in A. So, lets say</p>
<p> A = 21 ( 10101 ) and A is a char ( 1 byte )</p>
<p> ~A = </p>
<p> 0 0 0 1 0 1 0 1</p>
<p> --------------------------</p>
<p> 1 1 1 0 1 0 1 0 = -22 ( Sign bit is 1 ). </p>
<div class="raw-html-embed"><div id="c2"> 5. Right Shift Operators: </div></div>
<p>Syntax :</p>
<pre><code class="language-plaintext hljs">A >> x</code></pre>
<p>What does A » x mean :</p>
<p><code>A >> x</code> implies shifting the bits of A to the right by x positions. The last x bits are lost this way.</p>
<p><strong>Example :</strong> Lets say</p>
<pre><code class="language-plaintext hljs"> A = 29 ( 11101 ) and x = 2,
so A >> 2 means
0 0 1 1 1 0 1 >> 2
==== -> is lost
========== -----> this sequence of digit shifts to the right by 2 positions
----------------
0 0 0 0 1 1 1 = 7</code></pre>
<blockquote><p><code><strong>A >> x</strong></code><strong> is equal to division by pow(2, x)</strong>. Think why.</p></blockquote>
<div class="raw-html-embed"><div id="cplus2"> 6. Left shift operators:</div></div>
<p>Syntax :</p>
<pre><code class="language-plaintext hljs">A << x</code></pre>
<p>What does A « x mean :</p>
<p><code>A << x</code> implies shifting the bits of A to the left by x positions. The first x bits are lost this way. The last x bits have 0. <strong>Example</strong> : lets say</p>
<pre><code class="language-plaintext hljs"> A = 29 ( 11101 ) and x = 2,
so A << 2 means
0 0 1 1 1 0 1 << 2
============= ------> this sequence of digit shifts to the left by 2 positions
----------------
1 1 1 0 1 0 0 = 116 </code></pre>
<p><code><strong>A << x</strong></code><strong> is equal to multiplication by pow(2, x).</strong> Think why. <code><i>1 << x</i></code><i> is equal to pow(2, x).</i></p>
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200
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data-gtm-parent="Count Total Set Bits"
data-warn-msg="Average time taken to solve this problem is <span class='time-to-solve'>66</span> minutes. The quicker you solve the problem, the higher the score. Ready to start?<br /><br /> <div class='supported-languages text-muted'> <b>Supported Languages:</b> C (gcc-4.8), C# (.NET 8), C++17 (gcc-9.2), GO (1.17.4), Java 8 (array support), Java 8 (oracle-jdk-1.8), Java7 (open-jdk-1.7.0), JavaScript (ES6), Objective-C (clang 3.3), PHP (php 5.5.9), Python (python-2.7), Python 3 (python-3.8), Ruby 2 (ruby-2.0), Scala (scala-2.11.4), and Swift (5.5)</div>"
data-defer-access="true"
data-gtm-type="button"
href="/problems/count-total-set-bits/">Count Total Set Bits
</a>
</td>
<td class="problem_score">
200
</td>
<td>
<div class="tag-container">
<span class="problem-tags">
<a href='/search/?q=Amazon'><span>Amazon</span></a>
</span>
</div>
</td>
<td style="white-space: nowrap" class="time_to_solve">
66:06
</td>
<td class="problem_status">
</td>
</tr>
<tr id="problem_11635">
<td>
<a
class="locked problem_title gtm-track-element"
data-gtm-allowed-actions="click"
data-gtm-parent="Palindromic Binary Representation"
data-warn-msg="Average time taken to solve this problem is <span class='time-to-solve'>64</span> minutes. The quicker you solve the problem, the higher the score. Ready to start?<br /><br /> <div class='supported-languages text-muted'> <b>Supported Languages:</b> C (gcc-4.8), C# (.NET 8), C++17 (gcc-9.2), GO (1.17.4), Java 8 (array support), Java 8 (oracle-jdk-1.8), Java7 (open-jdk-1.7.0), JavaScript (ES6), Objective-C (clang 3.3), PHP (php 5.5.9), Python (python-2.7), Python 3 (python-3.8), Ruby 2 (ruby-2.0), Scala (scala-2.11.4), and Swift (5.5)</div>"
data-defer-access="true"
data-gtm-type="button"
href="/problems/palindromic-binary-representation/">Palindromic Binary Representation
</a>
</td>
<td class="problem_score">
200
</td>
<td>
<div class="tag-container">
<span class="problem-tags">
<a href='/search/?q=Amazon'><span>Amazon</span></a>
</span>
</div>
</td>
<td style="white-space: nowrap" class="time_to_solve">
64:45
</td>
<td class="problem_status">
</td>
</tr>
<tr id="problem_12282">
<td>
<a
class="locked problem_title gtm-track-element"
data-gtm-allowed-actions="click"
data-gtm-parent="XOR-ing the Subarrays!"
data-warn-msg="Average time taken to solve this problem is <span class='time-to-solve'>34</span> minutes. The quicker you solve the problem, the higher the score. Ready to start?<br /><br /> <div class='supported-languages text-muted'> <b>Supported Languages:</b> C (gcc-4.8), C# (.NET 8), C++17 (gcc-9.2), GO (1.17.4), Java 8 (array support), Java 8 (oracle-jdk-1.8), Java7 (open-jdk-1.7.0), JavaScript (ES6), Objective-C (clang 3.3), PHP (php 5.5.9), Python (python-2.7), Python 3 (python-3.8), Ruby 2 (ruby-2.0), Scala (scala-2.11.4), and Swift (5.5)</div>"
data-defer-access="true"
data-gtm-type="button"
href="/problems/xor-ing-the-subarrays/">XOR-ing the Subarrays!
</a>
</td>
<td class="problem_score">
200
</td>
<td>
<div class="tag-container">
<span class="problem-tags">
<a href='/search/?q=Zenefits'><span>Zenefits</span></a>
</span>
</div>
</td>
<td style="white-space: nowrap" class="time_to_solve">
34:40
</td>
<td class="problem_status">
</td>
</tr>
</tbody>
</table>
</div>
</div>
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<div class="col-sm-6 right-col" id="problems">
<div data-gtm-section="bucket problems list">
<div
class="panel assignment-list panel-default"
id="bucket_104"
>
<div class="panel-heading">
<span>Bit array</span>
<span class="glyphicon pull-right glyphicon-info glyphicon-info-sign"
data-toggle="tooltip" data-placement="top"
title="We group together similar problem into buckets. Solving ANY problem from the bucket marks it as completed.
Completing all the buckets will mark the topic as solved."></span>
</div>
<div class="collapse in" id="bucket-104">
<table class="table">
<thead>
<tr>
<th>Problem</th>
<th>Score</th>
<th>Companies</th>
<th>Time</th>
<th>Status</th>
</tr>
</thead>
<tbody>
<tr id="problem_193">
<td>
<a
class="locked problem_title gtm-track-element"
data-gtm-allowed-actions="click"
data-gtm-parent="Single Number"
data-warn-msg="Average time taken to solve this problem is <span class='time-to-solve'>11</span> minutes. The quicker you solve the problem, the higher the score. Ready to start?<br /><br /> <div class='supported-languages text-muted'> <b>Supported Languages:</b> C (gcc-4.8), C# (.NET 8), C++17 (gcc-9.2), GO (1.17.4), Java 8 (array support), Java 8 (oracle-jdk-1.8), Java7 (open-jdk-1.7.0), JavaScript (ES6), Objective-C (clang 3.3), PHP (php 5.5.9), Python (python-2.7), Python 3 (python-3.8), Ruby 2 (ruby-2.0), Scala (scala-2.11.4), and Swift (5.5)</div>"
data-defer-access="true"
data-gtm-type="button"
href="/problems/single-number/">Single Number
</a>
</td>
<td class="problem_score">
275
</td>
<td>
<div class="tag-container">
<span class="problem-tags">
<a href='/search/?q=Amazon'><span>Amazon</span></a><a href='/search/?q=sharechat'><span>sharechat</span></a><a href='/search/?q=toppr'><span>toppr</span></a><a href='/search/?q=Uber Technologies Inc'><span>Uber Technologies Inc</span></a><a href='/search/?q=Twitter'><span class="fa fa-twitter" data-toggle="tooltip" data-placement="bottom" title="Twitter"></span></a>
</span>
</div>
</td>
<td style="white-space: nowrap" class="time_to_solve">
11:53
</td>
<td class="problem_status">
</td>
</tr>
<tr id="problem_195">
<td>
<a
class="locked problem_title gtm-track-element"
data-gtm-allowed-actions="click"
data-gtm-parent="Single Number II"
data-warn-msg="Average time taken to solve this problem is <span class='time-to-solve'>39</span> minutes. The quicker you solve the problem, the higher the score. Ready to start?<br /><br /> <div class='supported-languages text-muted'> <b>Supported Languages:</b> C (gcc-4.8), C# (.NET 8), C++17 (gcc-9.2), GO (1.17.4), Java 8 (array support), Java 8 (oracle-jdk-1.8), Java7 (open-jdk-1.7.0), JavaScript (ES6), Objective-C (clang 3.3), PHP (php 5.5.9), Python (python-2.7), Python 3 (python-3.8), Ruby 2 (ruby-2.0), Scala (scala-2.11.4), and Swift (5.5)</div>"
data-defer-access="true"
data-gtm-type="button"
href="/problems/single-number-ii/">Single Number II
</a>
</td>
<td class="problem_score">
275
</td>
<td>
<div class="tag-container">
<span class="problem-tags">
<a href='/search/?q=Google'><span class="fa fa-google" data-toggle="tooltip" data-placement="bottom" title="Google"></span></a><a href='/search/?q=Amazon'><span>Amazon</span></a>
</span>
</div>
</td>
<td style="white-space: nowrap" class="time_to_solve">
39:22
</td>
<td class="problem_status">
</td>
</tr>
</tbody>
</table>
</div>
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data-class="tracks-topic-bonus-container"
class="ib-topic-section__problems-bucket ib-topic-section__problems-bucket--bonus p-0 hide"
>
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<div class="ib-topic-section__problems-bucket-lock">
<img
src="https://assets.interviewbit.com/assets/ibpp/lock-key-filled-68e6a642455579e9e6f5c0882806aee176e71a7acd4da34525211cf47c03f06d.svg"
class="ib-topic-section__problems-bucket-lock-img"
data-class="tracks-topic-bonus-lock-img"
alt="lock"
>
</div>
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<div data-class="tracks-topic-bonus-title" class="ib-topic-section__problems-topic-title">
Topic Bonus
</div>
<div data-class="tracks-topic-bonus-sub-title" class="ib-topic-section__problems-topic-sub-title">
Bonus will be unlocked after solving min. 1 problem from each bucket
</div>
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