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Articles by Ayush Gupta
Page 32 of 44
Convert an Array to a Circular Doubly Linked List in C++
In this tutorial, we will be discussing a program to convert an array to a circular doubly linked list.For this we will be provided with an array. Our task is to take the elements of the array and get it converted into a circular doubly linked list.Example Live Demo#include using namespace std; //node structure for doubly linked list struct node{ int data; struct node *next; struct node *prev; }; //node creation struct node* getNode(){ return ((struct node *)malloc(sizeof(struct node))); } //printing the list int print_list(struct node *temp){ struct node *t = temp; if(temp == NULL) ...
Read MoreConvert an arbitrary Binary Tree to a tree that holds Children Sum Property in C++
In this tutorial, we will be discussing a program to convert an arbitrary binary tree to a tree that holds children sum property.For this we will be provided with a binary tree. Our task is to convert it into the binary tree that follows the children sum property. But the restriction is that we can only increment the values present in the nodes, neither can change the structure of the tree or decrement values in the node.Example Live Demo#include #include using namespace std; //node structure for binary tree class node{ public: int data; node* left; node* right; ...
Read MoreConvert all substrings of length ‘k’ from base ‘b’ to decimal in C++
In this tutorial, we will be discussing a program to convert all substrings of length ‘k’ from base ‘b’ to decimal.For this we will be provided with a string of some certain length. Our task is to take the substrings from the given string of size ‘k’ and get it converted into the decimal numbers from being in base ‘b’.Example Live Demo#include using namespace std; //converting the substrings to decimals int convert_substrings(string str, int k, int b){ for (int i=0; i + k = 0; i--){ sum = sum + ((sub.at(i) - '0') * pow(b, ...
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 Live Demo#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 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 Live Demo#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 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 Live Demo#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"; ...
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 Live Demo#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 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 Live Demo#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 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 Live Demo#include using namespace std; //calculating the minimum value and final number int get_final(int n, ...
Read MoreConvert a number m to n using minimum number of given operations in C++
In this tutorial, we will be discussing a program to convert a number m to n using minimum number of given operations.For this we will be provided with two integers m and n. Our task is to convert the integer m to n using the given operations least times.Allowed operations −Multiply the given number by 2Subtract one from the given numberExample Live Demo#include using namespace std; //finding minimum number of operations required int convert(int m, int n){ if (m == n) return 0; if (m > n) return m - n; //can't convert ...
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