﻿ C Program: Check of sum of all 5 in an array is exactly 15

# C Exercises: Check if the sum of all 5' in the array exactly 15 in a given array of integers

## C-programming basic algorithm: Exercise-56 with Solution

Write a C program to check if the sum of all 5's in the array is exactly 15 in a given array of integers.

C Code:

``````#include <stdio.h>
#include <stdlib.h>

// Function prototype for 'test'
int test(int nums[], int arr_size);

int main(void){
int arr_size;

// Declaration and initialization of an integer array 'array1'
int array1[] = {1, 5, 6, 9, 10, 17};
arr_size = sizeof(array1)/sizeof(array1);

// Printing the result of the 'test' function for 'array1'
printf("%d",test(array1, arr_size));

// Declaration and initialization of an integer array 'array2'
int array2[] = {1, 5, 5, 5, 10, 17};
arr_size = sizeof(array2)/sizeof(array2);

// Printing the result of the 'test' function for 'array2'
printf("\n%d",test(array2, arr_size));

// Declaration and initialization of an integer array 'array3'
int array3[] = {1, 1, 5, 5, 5, 5};
arr_size = sizeof(array3)/sizeof(array3);

// Printing the result of the 'test' function for 'array3'
printf("\n%d",test(array3, arr_size));
}

// Definition of the 'test' function
int test(int nums[], int arr_size)
{
int sum = 0;

// Looping through the elements of the array
for (int i = 0; i < arr_size; i++)
{
// Checking if the current element is equal to 5
if (nums[i] == 5)
{
sum += 5; // If condition met, add 5 to 'sum'
}
}

return sum == 15; // Return whether 'sum' is equal to 15
}
``````

Sample Output:

```0
1
0
```

Pictorial Presentation: Flowchart: C Programming Code Editor:

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