In this blog post, I will teach you how to write C/C++ Program to count set bits in an Integer. After reading this post you able to write an efficient program to count the number of 1s in the binary representation of an integer. Examples, Input : n = 9 Output : 2 Binary representation […]
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In this blog post, I will teach you how to write C++ Program to check whether a given number is power of two. After reading this post you able to check whether given number is power of two or not. But before writing the CPP program to how to check given number is power of
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In this blog post, I will teach you to how to write a C++ Program to Add Two Binary Strings. Examples, Example 1: Input: a = “10”, b = “1” Output: “101” Example 2: Input: a = “1010”, b = “1011” Output: “10101” Problem Statement: Given two binary strings s1 and s2, return their
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In this blog post, I will explain the range-based for loop with the help of example code. The range-based for loop is introduced in C++11. It executes a for loop over a range and is more readable equivalent to the traditional for loop. See the below syntax for the range-based for loop. Syntax: for (
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Destructors are used to release any resources allocated by the object. In this blog post, I will explain when to use virtual destructors in C++. But before explaining it I want to tell you some contexts where the destructor is invoked implicitly. Let’s see a few of them, For a constructed object with static storage
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In this blog post, you will learn how to call a base class function from a derived class function in C++. The primary prerequisite to solving this problem is an understanding of inheritance. So here I assumed you have already an understanding of inheritance in C++. So let’s get started with the problem statement. Problem
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You will learn to solve the problem of how to write a C++ program to remove duplicates from a sorted array. So the important point is that the array is already sorted in either ascending or descending order. Now let’s see the problem statement, Problem Statement: Given an integer array “arr“, sorted in increasing order,
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In this blog post, you will learn how to write a C++ Program to check if a given number is Palindrome or not. But before writing the C++ code if a given number is Palindrome or not first let’s understand what a palindrome number is. A number is called a palindrome number if the reverse
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Given an array arr[] of n numbers and another number target, the task is to check whether or not there exist two elements in arr[] whose sum is exactly the target. That means you just need to find whether or not there exist two elements in an array whose sum is exactly equal to the
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In this blog post, you will learn how to initialize a vector in C++ with the help of C++ programs. I have already written an article on vectors if you want you can check it; “C++ vectors“. Now comes the topic of how we can initialize the C++ vector. I will go through the different
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