﻿ C : Compare each element in an array with its predecessor

# C Exercises: Check if the value of each element is equal or greater than the value of previous element of a given array of integers

## C-programming basic algorithm: Exercise-74 with Solution

Write a C program to check if the value of each element is equal or greater than the value of the previous element of a given array of integers.

C Code:

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

// Function prototype for 'test'
int test(int nums[], int arr_size);

int main(void){
int arr_size;
int array1[] = {5, 5, 1, 5, 5};
arr_size = sizeof(array1)/sizeof(array1);
printf("%d", test(array1, arr_size));

int array2[] = {1, 2, 3, 4};
arr_size = sizeof(array2)/sizeof(array2);
printf("\n%d", test(array2, arr_size));

int array3[] = {3, 3, 5, 5, 5, 5};
arr_size = sizeof(array3)/sizeof(array3);
printf("\n%d", test(array3, arr_size));
}

// Definition of the 'test' function
int test(int nums[], int arr_size)
{
// Loop to iterate through the array
for (int i = 0; i < arr_size - 1; i++)
{
// Check if the next element is less than the current element
if (nums[i + 1] < nums[i])
return 0; // If true, the array is not in non-decreasing order
}

return 1; // If the loop completes without returning 0, the array is in non-decreasing order
}
``````

Sample Output:

```0
1
1
```

Pictorial Presentation: Flowchart: C Programming Code Editor:

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