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C Exercises: Compute the sum of the two specified integers. If one of the given integer value is in the range 10..20 inclusive return 18

C-programming basic algorithm: Exercise-22 with Solution

Write a C program to compute the sum of the two given integers. If one of the given integer value is in the range 10..20 inclusive return 18.

C Code:

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

int main(void){
    printf("%d",test(3, 7));
    printf("\n%d",test(10, 11));
    printf("\n%d",test(10, 20));
    printf("\n%d",test(21, 220));
    }       
    int test(int x, int y)
         {
            return (x >= 10 && x <= 20) || (y >= 10 && y <= 20) ? 18 : x + y;
         }

Sample Output:

10
18
18
241

Pictorial Presentation:

C Programming Algorithm: Compute the sum of the two specified integers

Flowchart:

C Programming Algorithm Flowchart: Compute the sum of the two specified integers

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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