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C Exercises: Compute the sum of the elements of a given array of integers

C-programming basic algorithm: Exercise-36 with Solution

Write a C program to compute the sum of the elements of a given array of integers.

C Code:

#include <stdio.h>
#include <stdlib.h>
int main(void){    
     int array1[] = {10, 20, 30, 40, 50};
     int array2[] = {10, 20, -30, -40, 50};
     printf("%d",test(array1));
     printf("\n%d",test(array2));
    }  
      int test(int a1[])
         {
              return a1[0] + a1[1] + a1[2] + a1[3] + a1[4];
         }

Sample Output:

150
10

Pictorial Presentation:

C Programming Algorithm: Compute the sum of the elements of a given array of integers

Flowchart:

C Programming Algorithm Flowchart: Compute the sum of the elements of a given array of integers

C Programming Code Editor:

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Previous: Write a C program to check a given array of integers of length 1 or more and return true if the first element and the last element are equal in the given array.
Next: Write a C program to rotate the elements of a given array of integers (length 4 ) in left direction and return the new array.

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP