Сумма всех элементов в массиве, делящаяся на заданное число K
Дан массив, содержащий N элементов и число K. Задача состоит в том, чтобы найти сумму всех таких элементов, которые делятся на K.
Примеры :
Ввод: arr [] = {15, 16, 10, 9, 6, 7, 17}
К = 3
Выход: 30
Ввод: arr [] = {5, 3, 6, 8, 4, 1, 2, 9}
К = 2
Выход: 20The idea is to traverse the array and check the elements one by one. If an element is divisible by K then add that element’s value with the sum so far and continue this process while the end of the array reached.
Below is the implementation of the above approach:
C++
// C++ program to find sum of all the elements// in an array divisible by a given number K#include <iostream>using namespace std;// Function to find sum of all the elements// in an array divisible by a given number Kint findSum(int arr[], int n, int k){ int sum = 0; // Traverse the array for (int i = 0; i < n; i++) { // If current element is divisible by k // add it to sum if (arr[i] % k == 0) { sum += arr[i]; } } // Return calculated sum return sum;}// Driver codeint main(){ int arr[] = { 15, 16, 10, 9, 6, 7, 17 }; int n = sizeof(arr) / sizeof(arr[0]); int k = 3; cout << findSum(arr, n, k); return 0;} |
Java
// Java program to find sum of all the elements// in an array divisible by a given number Kimport java.io.*;class GFG {// Function to find sum of all the elements// in an array divisible by a given number Kstatic int findSum(int arr[], int n, int k){ int sum = 0; // Traverse the array for (int i = 0; i < n; i++) { // If current element is divisible by k // add it to sum if (arr[i] % k == 0) { sum += arr[i]; } } // Return calculated sum return sum;} // Driver code public static void main (String[] args) { int arr[] = { 15, 16, 10, 9, 6, 7, 17 }; int n = arr.length; int k = 3; System.out.println( findSum(arr, n, k)); }}// this code is contributed by anuj_67.. |
Python3
# Python3 program to find sum of# all the elements in an array# divisible by a given number K# Function to find sum of all# the elements in an array# divisible by a given number Kdef findSum(arr, n, k) : sum = 0 # Traverse the array for i in range(n) : # If current element is divisible # by k add it to sum if arr[i] % k == 0 : sum += arr[i] # Return calculated sum return sum# Driver codeif __name__ == "__main__" : arr = [ 15, 16, 10, 9, 6, 7, 17] n = len(arr) k = 3 print(findSum(arr, n, k))# This code is contributed by ANKITRAI1 |
C#
// C# program to find sum of all the elements// in an array divisible by a given number Kusing System;public class GFG{// Function to find sum of all the elements// in an array divisible by a given number Kstatic int findSum(int []arr, int n, int k){ int sum = 0; // Traverse the array for (int i = 0; i < n; i++) { // If current element is divisible by k // add it to sum if (arr[i] % k == 0) { sum += arr[i]; } } // Return calculated sum return sum;} // Driver code static public void Main (){ int []arr = { 15, 16, 10, 9, 6, 7, 17 }; int n = arr.Length; int k = 3; Console.WriteLine( findSum(arr, n, k)); }}//This code is contributed by anuj_67.. |
PHP
<?php// PHP program to find sum of all// the elements in an array divisible// by a given number K// Function to find sum of all// the elements in an array// divisible by a given number Kfunction findSum($arr, $n, $k){ $sum = 0; // Traverse the array for ($i = 0; $i < $n; $i++) { // If current element is divisible // by k add it to sum if ($arr[$i] % $k == 0) { $sum += $arr[$i]; } } // Return calculated sum return $sum;}// Driver code$arr = array(15, 16, 10, 9, 6, 7, 17);$n = sizeof($arr);$k = 3;echo findSum($arr, $n, $k);// This code is contributed// by Akanksha Rai(Abby_akku) |
Javascript
<script> // Javascript program to find sum of all the elements // in an array divisible by a given number K // Function to find sum of all the elements // in an array divisible by a given number K function findSum(arr, n, k) { let sum = 0; // Traverse the array for (let i = 0; i < n; i++) { // If current element is divisible by k // add it to sum if (arr[i] % k == 0) { sum += arr[i]; } } // Return calculated sum return sum; } let arr = [ 15, 16, 10, 9, 6, 7, 17 ]; let n = arr.length; let k = 3; document.write(findSum(arr, n, k));</script> |
30
Сложность времени : O (N), где N - количество элементов в массиве.
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