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Last Updated: 29 June 2022

We sometimes need to round down the float values to the next lowest integer in our maths problems.PHP provides a built-in function floor() to get this task done through ou...read more

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PHP Programs

PHP Program to Rearrange Array Such That arr[i] >= arr[j] if i is Even and arr[i]<=arr[j] if i is Odd and j < i

Last Updated: 22 July 2024

Given an array of n elements. Our task is to write a program to rearrange the array such that elements at even positions are greater than all elements before it and elemen...read more

PHP Program to Count Primes in Ranges

Last Updated: 22 July 2024

Given a range [L, R], we need to find the count of total numbers of prime numbers in the range [L, R] where 0 = L = R 10000. Consider that there are a large number of que...read more

PHP Program to Find the Size of Subarray With Maximum Sum

Last Updated: 22 July 2024

Given an Array, the task is to find the size of the subarray that yields the maximum sum. This article provides a comprehensive guide on how to implement a PHP program to ...read more

PHP Program to Print all triplets in sorted array that form AP

Last Updated: 22 July 2024

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples :Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 35,...read more

arithmetic progression

PHP Program to Print uncommon elements from two sorted arrays

Last Updated: 22 July 2024

Given two sorted arrays of distinct elements, we need to print those elements from both arrays that are not common. The output should be printed in sorted order.Examples :...read more

two-pointer-algorithm

PHP Program for Minimum Product Subset of an Array

Last Updated: 22 July 2024

Given an array Arr, we have to find the minimum product possible with the subset of elements present in the array. The minimum product can be a single element also.Example...read more

PHP Program to Check Involutory Matrix

Last Updated: 22 July 2024

Given a matrix, the task is to check matrix is involutory matrix or not. Involutory Matrix: A matrix is said to be involutory matrix if the matrix multiply by itself retur...read more

PHP Program to Interchange elements of first and last rows in matrix

Last Updated: 22 July 2024

Given a 4 x 4 matrix, we have to interchange the elements of first and last row and show the resulting matrix.Examples :Input : 3 4 5 0 2 6 1 2 2 7 1 2 ...read more

PHP Program to Sort the matrix row-wise and column-wise

Last Updated: 22 July 2024

Given a n x n matrix. The problem is to sort the matrix row-wise and column-wise.Examples:Input : mat[][] = { {4, 1, 3}, {9, 6, 8}, {...read more

PHP Program for Identity Matrix

Last Updated: 22 July 2024

Introduction to Identity Matrix : The dictionary definition of an Identity Matrix is a square matrix in which all the elements of the principal or main diagonal are 1's an...read more

PHP Program to Count Sets of 1s and 0s in a Binary Matrix

Last Updated: 22 July 2024

Given a N x M Binary Matrix, count the number of sets where a set can be formed one or more same values in a row or column.Examples:Input: [[ 1, 0, 1 ], [ 0, 1, ...read more

PHP Program to Efficiently compute sums of diagonals of a matrix

Last Updated: 22 July 2024

Given a 2D square matrix, find the sum of elements in Principal and Secondary diagonals. For example, consider the following 4 X 4 input matrix.A00 A01 A02 A03A10 A11 A12 ...read more

PHP Program To Check If A String Is Substring Of Another

Last Updated: 22 July 2024

Given two strings s1 and s2, find if s1 is a substring of s2. If yes, return the index of the first occurrence, else return -1.Examples:Input: s1 = "for", s2 = "geeksforge...read more

String to Integer in Different Programming Languages

Last Updated: 24 August 2024

Below are example programs to do string to integer conversion in different programming languages.C++#include bits/stdc++.husing namespace std;int main(){ int val; ch...read more

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