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C Exercises: Check whether a given array of integers of length 2, contains 15 or 20

C-programming basic algorithm: Exercise-41 with Solution

Write a C program to check whether a given array of integers of length 2, contains 15 or 20.

C Code:

#include <stdio.h>
#include <stdlib.h>
int main(void){
    int arr_size;
    int array1[] = {12, 20};
    printf("%d",test(array1));
    int array2[] = {14, 15};
    printf("\n%d",test(array2));
    int array3[] =  {11, 21};
    printf("\n%d",test(array3));
    }       
    int test(int nums[])
         {
             return nums[0] == 12 || nums[0] == 15 || nums[1] == 12 || nums[1] == 15;
        }

Sample Output:

1
1
0

Pictorial Presentation:

C Programming Algorithm: Check whether a given array of integers of length 2, contains 15 or 20

Flowchart:

C Programming Algorithm Flowchart: Check whether a given array of integers of length 2, contains 15 or 20

C Programming Code Editor:

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C Programming: Tips of the Day

Why doesn't a+++++b work?

printf("%d",a+++++b); is interpreted as (a++)++ + b according to the Maximal Munch Rule!.

++ (postfix) doesn't evaluate to an lvalue but it requires its operand to be an lvalue.

! 6.4/4 says the next preprocessing token is the longest sequence of characters that could constitute a preprocessing token"

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