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C++ Articles
Page 532 of 597
Print all permutations with repetition of characters in C++
In this problem, we are given a string of n characters and we have to print all permutations of characters of the string. Repeating of characters of the string is allowed. The printing of permutation should be done in alphabetical order (lexicographically sorted order).Let’s take an example to understand the topic better :Input − XYOutput − XX, XY, YX, YYTo solve this problem, we need to use fix and recur logic. Here, we will fix one element at first index of the array and then recursively call for the next elements in the sequence.Let’s see an implementation example which will ...
Read MoreC++ program to implement Run Length Encoding using Linked Lists
In this tutorial, we will be discussing a program to implement Run Length Encoding using Linked Lists.For this we will be given with a linked list. OUr task is too encode the elements of the Linked List using Run Length Encoding.For example, if the elements of the linked list are “a->a->a->a->a” then in run length encoding they will be replaced by “a → 5”.Example#include using namespace std; //structuring linked list node struct Node { char data; struct Node* next; }; //creating a new node Node* newNode(char data){ Node* temp = new Node; temp->data = data; ...
Read MoreBinary representation of previous number in C++
In this problem, we are given the binary representation of a number and we have to find the binary representation of the previous number i.e. the number that is resulted after subtracting one from the given number.Binary representation of a number is changing the base of the number to base 2 and representing the number using only 0 or 1.For example, Binary representation of 23 is 10111.So, here we would be given a number, let's say n in binary form. And we have to find the binary representation of n-1.To solve this problem, we need to know the basics of ...
Read MoreC++ program to find the rate percentage from compound interest of consecutive years
In this tutorial, we will be discussing a program to find the rate percentage from compound interest of the consecutive years.For this, we will be provided with two integers say A and B that are the interests of two consecutive years. Our task is to find the rate of interest for the given values.Finding the relation between the given values and eliminating the principal amount, we get the formula asrate = ((B-A)*100)/AExample#include using namespace std; //calculating the rate of interest float calc_rate(int N1, int N2) { float rate = (N2 - N1) * 100 / float(N1); return ...
Read MoreC++ program to find the side of the Octagon inscribed within the square
In this tutorial, we will be discussing a program to find the side of the octagon inscribed within a given square.For this, we will be given with the side of a square and our task is to find the side of the largest octagon that can be inscribed in it.Finding the relation between the sides of the square and the octagon, we find the formula for the side of the octagonside of square/(√2 + 1)Example#include using namespace std; //calculating the side of the octagon float calc_oside(float a) { if (a < 0) return -1; ...
Read MoreC++ program to find the smallest element among three elements
In this tutorial, we will be discussing a program to find the smallest element among the provided three elements.We will be provided with three elements/ integers and our task is to compare them and find the smallest element/ integer among them.Example#include using namespace std; int main() { int a = 45, b = 72, c = 10; if (a
Read MoreC++ program to find the Sum of each Row and each Column of a Matrix
In this tutorial, we will be discussing a program to find the sum of each row and each column for a given matrix.For this, we will be given with a say A*B matrix. Our task is to traverse through all the elements of the matrix and find the sum of each row and each column of the matrix.Example#include using namespace std; #define m 7 #define n 6 //calculating sum of each row void calc_rsum(int arr[m][n]){ int i,j,sum = 0; for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) { sum = sum + arr[i][j]; } cout
Read MoreC++ program to find the sum of the series (1*1) + (2*2) + (3*3) + (4*4) + (5*5) + ... + (n*n)
In this tutorial, we will be discussing a program to find the sum of the given series (1*1) + (2*2) + (3*3) + (4*4) + (5*5) + … + (n*n).For this, we will be given with the value of n and our task is to add up every term starting from the first one to find the sum of the given series.Example#include using namespace std; //calculating the sum of the series int calc_sum(int n) { int i; int sum = 0; for (i = 1; i
Read MoreC++ program to find the sum of the series (1/a + 2/a^2 + 3/a^3 + ... + n/a^n)
In this tutorial, we will be discussing a program to find the sum of the given series (1/a + 2/a^2 + 3/a^3 + … + n/a^n).For this, we will be given with the value of n and our task is to add up every term starting from the first one to find the sum of the given series.Example#include #include using namespace std; //calculating the sum of the series float calc_sum(int a, int n) { int i; float sum = 0; for (i = 1; i
Read MoreC++ Program to find the sum of the series 23+ 45+ 75+..... upto N terms
In this tutorial, we will be discussing a program to find the sum of the given series 23+ 45+ 75+….. upto N terms.For this, we will be given with the value of N and our task is to add up every term starting from the first one to find the sum of the given series.After solving this, we get the formula for the sum of the series;Sn = (2n(n+1)(4n+17)+54n)/6Example#include using namespace std; //calculating the sum of the series int calc_sum(int N) { int i; int sum = (2 * N * (N + 1) * (4 * ...
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