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Articles by Ayush Gupta
Page 34 of 44
Convert a number of length N such that it contains any one digit at least 'K' times in C++
In this tutorial, we will be discussing a program to convert a number of length N such that it contains any one digit at least ‘K’ times.For this we will be provided with a number of given length N. Our task is to convert the digits in the given number such that any one digit gets repeated at least ‘K’ times. Also, you have to calculate the cost of this operation which is the absolute difference between the two and finally print the minimum cost.Example#include using namespace std; //calculating the minimum value and final number int get_final(int n, int ...
Read MoreConvert a sentence into its equivalent mobile numeric keypad sequence in C++
In this tutorial, we will be discussing a program to convert a sentence into its equivalent mobile numeric keypad sequence.For this we will be provided with a string of alphabetical characters. Our task is to print the numeric equivalent of the string i.e the numerical sequence of the keys to type that particular string.Example#include using namespace std; //computing the numerical sequence string calc_sequence(string arr[], string input){ string output = ""; //length of input string int n = input.length(); for (int i=0; i
Read MoreConvert a String into a square matrix grid of characters in C++
In this tutorial, we will be discussing a program to convert a string into a square matrix grid of characters.For this we will be provided with a string of characters. Our task is to print that particular string in the format of a matrix grid having a certain number of rows and columns.Example#include using namespace std; //converting the string in grid format void convert_grid(string str){ int l = str.length(); int k = 0, row, column; row = floor(sqrt(l)); column = ceil(sqrt(l)); if (row * column < l) row = column; ...
Read MoreConvert a string to hexadecimal ASCII values in C++
In this tutorial, we will be discussing a program to convert a string to hexadecimal ASCII values.For this we will be provided with a string of characters. Our task is to print that particular given string into its hexadecimal equivalent.Example#include #include //converting string to hexadecimal void convert_hexa(char* input, char* output){ int loop=0; int i=0; while(input[loop] != '\0'){ sprintf((char*)(output+i), "%02X", input[loop]); loop+=1; i+=2; } //marking the end of the string output[i++] = '\0'; } int main(){ char ascii_str[] = "tutorials point"; int ...
Read MoreConvert a tree to forest of even nodes in C++
In this tutorial, we will be discussing a program to convert a tree to a forest of even nodes.For this we will be provided with a binary tree of say N nodes. Our task is to calculate the maximum number of edges that can be removed to get forest of even nodes.Example#include #define N 12 using namespace std; //returning the number of nodes of subtree //having the root node int depth_search(vector tree[N], int visit[N], int *ans, int node){ int num = 0, temp = 0; //marking nodes as visited visit[node] = 1; for (int i = ...
Read MoreConvert all lowercase characters to uppercase whose ASCII value is co-prime with k in C++
In this tutorial, we will be discussing a program to convert all lowercase characters to uppercase whose ASCII value is co-prime with k.For this we will be provided with a string and an integer value k. Our task is to traverse through the given string and change to uppercase all those characters whose ASCII value is co-prime with the given integer k.Example#include using namespace std; //modifying the given string void convert_string(string s, int k){ int l = s.length(); for (int i = 0; i < l; i++) { int ascii = (int)s[i]; ...
Read MoreProgram to print a rectangle pattern in C++
In this tutorial, we will be discussing a program to print a given rectangular pattern.For this we will be given with the height and the breath of the rectangle. Our task is to print the rectangle with the given dimensions using the “@” character.Example#include using namespace std; void print_rec(int h, int w){ for (int i=0; i
Read MoreProgram to print all palindromes in a given range in C++
In this tutorial, we will be discussing a program to print all palindromes in a given range.For this we will be given the mathematical range in which the palindromes are to be found. Our task is to find all the palindromes in that range and print it back.Example#include using namespace std; //checking if the number is a palindrome int is_palin(int n){ int rev = 0; for (int i = n; i > 0; i /= 10) rev = rev*10 + i%10; return (n==rev); } void countPal(int min, int max){ for (int i = min; i
Read MoreProgram to print all substrings of a given string in C++
In this tutorial, we will be discussing a program to print all the substring of a given string.For this we will be given with a string or an array of characters. Our task is to print all the substrings of that particular string.Example#include using namespace std; //printing all the substrings void print_substr(char str[], int n){ for (int len = 1; len
Read MoreProgram to print all the numbers divisible by 3 and 5 in C++
In this tutorial, we will be discussing a program to print all the numbers divisible by 3 and 5 less than the given number.For this we will be given with a number say N. Our task is to print all the numbers less than N which are divisible by both 3 and 5.Example#include using namespace std; //printing the numbers divisible by 3 and 5 void print_div(int N){ for (int num = 0; num < N; num++){ if (num % 3 == 0 && num % 5 == 0) cout
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