C Exercises: Find the largest value from first, last, and middle elements of a given array of integers of odd length

C-programming basic algorithm: Exercise-50 with Solution

Write a C program to find the largest value from the first, last, and middle elements of a given array of integers of odd length (at least 1).

C Code:

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

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

int main(void){
    // Declaration of variables
    int arr_size; // Variable to store the size of the array

    // Declaration and initialization of three different arrays
    int array1[] = {1};
    int array2[] = {1,2,9};
    int array3[] = {1,2,9,3,3};

    // Calculating the size of the first array
    arr_size = sizeof(array1)/sizeof(array1[0]);

    // Printing the result of 'test' function for the first array
    printf("%d",test(array1, arr_size));

    // Calculating the size of the second array
    arr_size = sizeof(array2)/sizeof(array2[0]);

    // Printing the result of 'test' function for the second array
    printf("\n%d",test(array2, arr_size));

    // Calculating the size of the third array
    arr_size = sizeof(array3)/sizeof(array3[0]);

    // Printing the result of 'test' function for the third array
    printf("\n%d",test(array3, arr_size));
}       

// Definition of the 'test' function
int test(int numbers[], int arr_size)
{
    // Declaration of variables
    int first, middle_ele, last_ele, max_ele;

    // Initializing 'first', 'middle_ele', and 'last_ele' with values from the array
    first = numbers[0];
    middle_ele = numbers[arr_size / 2];
    last_ele = numbers[arr_size - 1];

    // Initializing 'max_ele' with the value of 'first'
    max_ele = first;

    // Checking if 'middle_ele' is greater than 'max_ele'
    if (middle_ele > max_ele)
    {
        max_ele = middle_ele;
    }

    // Checking if 'last_ele' is greater than 'max_ele'
    if (last_ele > max_ele)
    {
        max_ele = last_ele;
    }

    // Returning the maximum value
    return max_ele;
}

Sample Output:

1
9
9

Pictorial Presentation:

Flowchart:

C Programming Code Editor:

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