Example: C Program to Add Two Distances (in inch-feet) system using Structures

// C Program to Add Two Distances (in inch-feet) using Structures
#include <stdio.h>

// Make structure of the distance
struct {
    int feet;
    float inches;
} x, y, results;

// It's the main function of the program
int main() {
    // Step-1 INPUT of the first distance
    printf("Enter the 1st distance in Feet: ");
    scanf("%d", &x.feet);

    printf("Enter the 1st distance in Inches: ");
    scanf("%f", &x.inches);

    // Step-2 INPUT of the second distance
    printf("\nEnter the 2nd distance in Feet: ");
    scanf("%d", &y.feet);

    printf("Enter the 2nd distance in Inches: ");
    scanf("%f", &y.inches);

    // Step-3 Calculate the values of these distances to make sum
    results.feet = x.feet + y.feet;
    results.inches = x.inches + y.inches;

    // Step-4 It will check the value of the results.inches
    // If its value is greater or equal to 12 then It will convert and add this value in results.feet
    while (results.inches >= 12.0) {
        results.inches = results.inches - 12.0;
        results.feet++;
    }

    // Step-5 Final output of the program
    printf("\nFinal distances: %d\'-%.1f\"\n", results.feet, results.inches);
    return 0;
}