w3resource

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

C Programming Code Editor:

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.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



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