C Exercises: Check a given array of integers and return true if there are two values 15, 15 next to each other

C-programming basic algorithm: Exercise-75 with Solution

Write a C program to check a given array (length will be at least 2) of integers and return true if there are two values 15, 15 next to each other.

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;

    // Initialize array1 and calculate its size
    int array1[] = {5, 5, 1, 15, 15};
    arr_size = sizeof(array1)/sizeof(array1[0]);

    // Print the result of calling 'test' with array1
    printf("%d", test(array1, arr_size));

    // Similar steps for array2 and array3
    int array2[] = {15, 2, 3, 4, 15};
    arr_size = sizeof(array2)/sizeof(array2[0]);
    printf("\n%d", test(array2, arr_size));

    int array3[] = {3, 3, 15, 15, 5, 5};
    arr_size = sizeof(array3)/sizeof(array3[0]);
    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 current and next element are both 15
        if (nums[i + 1] == nums[i] && nums[i] == 15)
            return 1; // If true, condition is met, so return 1
    }

    return 0; // If loop completes without finding the condition, return 0
}

Sample Output:

1
0
1

Pictorial Presentation:

Flowchart:

C Programming Code Editor:

Previous: Write a C program to create new array from a given array of integers shifting all even numbers before all odd numbers.
Next: C Basic Declarations and Expressions Exercises Home