Greatest find CM:MM with structure | C Language

Q :  Define a structure Distance having two data members: cm and mm in integer. The program enters three variables and find which distance is the largest among them.

Answer 

#include<stdio.h>

#include<conio.h>

/*============================

     Girfa Student Help

     Find greatest cm:mm using structure

==============================*/

struct len

{

     float cm;

     float mm;

};

void main()

{

     int a,b,c;

     struct len v1,v2,v3;

     clrscr();

     printf("Enter first cm:mm>> ");

     scanf("%f%f",&v1.cm,&v1.mm);

     printf("Enter second cm:mm>> ");

     scanf("%f%f",&v2.cm,&v2.mm);

     printf("Enter third cm:mm>> ");

     scanf("%f%f",&v3.cm,&v3.mm);

     a=v1.cm+(v1.mm/10);

     b=v2.cm+(v2.mm/10);

     c=v3.cm+(v3.mm/10);

     if(a>b)

     {

           if(b>c)

                puts("First Variable is a is greater");

           else

                puts("Third Variable is a is greater");

     }

     else

     {

           if(b>c)

                puts("Second Variable is a is greater");

           else

                puts("Third Variable is a is greater");

     }

     getch();

}

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