C - 使用结构从用户输入添加距离

Question

I am very new to C and am struggling with this code. I need to get the feet and inches of two athletes from user input using a structure, then total the inches of each athlete to determine the winner. The issue I'm having is that the value being returned doesn't make any sense. My guess is it has something to do with getting the address of the value instead of the actual value, but after changing some things around I just end up with errors or the program crashing. Any help is appreciated.

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

//Distance Structure
struct Distance
{
    int feet;
    float inches;
};

int main() {

    //Initialize athelete structures
    struct Distance athlete1;
    struct Distance athlete2;

    //Get values for athlete 1
    printf("Enter the distance for athlete 1\n");
    printf("Feet: ");
    scanf("%d", &athlete1.feet);
    printf("Inches: ");
    scanf("%d", &athlete1.inches);

    //Get values for athlete 2
    printf("Enter the distance for athlete 2\n");
    printf("Feet: ");
    scanf("%d", &athlete2.feet);
    printf("Inches: ");
    scanf("%d", &athlete2.inches);

    //Convert values to inches
    float total1 = calculateInches(athlete1.feet, athlete1.inches);
    float total2 = calculateInches(athlete2.feet, athlete2.inches);

    //Print distance in inches
    printf("\nAthlete 1 has a distance of %d inches\n", total1);
    printf("Athlete 2 has a distance of %d inches\n\n", total2);

    //Print the winner
    if(total1 > total2){
        printf("Athlete 1 wins!");
    }
    else if(total1 < total2){
        printf("Athlete 2 wins!");
    }
    else{
        printf("Tie!");
    }
    return 0;
}

//Calculate Inches
int calculateInches(feet, inches){
    float total;
    total = (feet*12) + inches;
    return total;
}

Answer 1

There are few issues with your code:

• The format specifier to be used whenever you are using float is %f instead you are using %d

• Try forward declaring your calculateInches() method. Write it above the main() method or try using a function prototype. have a look at this link

• Mention the right types for the arguments to the function float calculateInches(float feet, int inches) . Related question

Working example: https://ideone.com/jsMZgv