w3resource
C Programming Exercises

C Exercises: 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

C-programming basic algorithm: Exercise-34 with Solution

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.

C Code:

#include <stdio.h>
#include <stdlib.h>
int main(void){
    int arr_size;
    int array1[] = {1, 1, 2, 2, 1};
    arr_size = sizeof(array1)/sizeof(array1[0]);
    printf("%d",test(array1, arr_size));
    int array2[] = {1, 1, 2, 1, 2, 3};
    arr_size = sizeof(array2)/sizeof(array2[0]);
    printf("\n%d",test(array2, arr_size));
    int array3[] =  { 12, 24, 35, 55 };
    arr_size = sizeof(array3)/sizeof(array3[0]);
    printf("\n%d",test(array3, arr_size));
    }       
    int test(int nums[], int arr_size)
         {
             return arr_size > 0 && nums[0] == nums[arr_size - 1];
        }

Sample Output:

1
0
0

Pictorial Presentation:

C Programming Algorithm: 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

Flowchart:

C Programming Algorithm Flowchart: 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

Solution

Contribute your code and comments through Disqus.

Previous: Write a C program to check three given integers (small, medium and large) and return true if the difference between small and medium and the difference between medium and large is same.
Next: Write a C program to check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element.