box

#include <stdio.h>
typedef struct
{
    float w;
    int h;
}box;
    box sum(box a1,box a2);
    float sumcal(int a1,int a2,float b1,float b2);
    float sumcalbox(box a1,box a2);
int main()
{
    box box1,box2;
    printf("Weigth 1 : ");
    scanf("%f",&box1.w);
    printf("Higth 1 : ");
    scanf("%d",&box1.h);
    printf("\n");
    printf("Weigth 2 : ");
    scanf("%f",&box2.w);
    printf("Higth 2 : ");
    scanf("%d",&box2.h);
    printf("\n");
    box result=sum(box1,box2);
    printf("Hight = %d\nWeight = %.2f\n",result.h,result.w);
    printf("Allsum = %.2f\n",sumcal(box2.h,box1.h,box1.w,box2.w));
    printf("Allsum = %.2f\n",sumcalbox(box1,box2));
    return 0;
}

    box sum(box a1,box a2)
    {
        box c;
        c.h=(a1.h+a2.h);
        c.w=(a1.w+a2.w);
        return c;
    }
    float sumcal(int a1,int a2,float b1,float b2)
    {
        return a1+a2+b1+b2;
    }
    float sumcalbox(box a1,box a2)
    {
        return  a1.w+a1.h+a2.w+a2.h;
    }