Skip to main content

​
Problem Statement

Imagine you are developing a fitness tracking app for marathon runners. The app’s goal is to calculate how many calories a runner burns based on the distance they run. A person burns 50 cal/km. Write a C program that takes distance travelled in metres and calculates the calories burned by the marathon runner.

​
Test Case

InputDistance in metres: 7500
Expected OutputYou burned 375 calories by running 7.5km

​
Solution

#include <stdio.h>

int main() {
    float distance;

    printf("Enter the distance you travelled in metres: ");
    scanf("%f", &distance);

    float kmdistance = distance / 1000;
    float calorieburn = kmdistance * 50;

    printf("You burned %.0f calories by running %.1fkm.\n", calorieburn, kmdistance);

    return 0;
}

​
Input

Enter the distance you travelled in metres: 7500

​
Output

You burned 375 calories by running 7.5km.