7. Define a structure by name time with members seconds, minutes and hours of int type. A variable of the structure would thus represent time. If time1 and time2 are two variables of the structure type, write a program to find the difference of two times using a function.

 

#include<stdio.h>

#include<conio.h>

struct time

{

    int sec,min,h;

}t[2];

void main()

{

    int i,s,m,hh;

    clrscr();

    for(i=0; i<2; i++)

    {

        printf("enter time %d: ",i+1);

        printf("\n\nenter hour for time %d: ",i+1);

        scanf("%d",&t[i].h);

        if(t[i].h > 24)

        {

            printf("\n!! please enter less than 24 !!");

            getch();

            exit(0);

        }

        printf("\nenter minute for time %d: ",i+1);

        scanf("%d",&t[i].min);

        if(t[i].min > 60)

        {

            printf("\n!! please enter less than 60 !!");

            getch();

            exit(0);

        }

        printf("\nenter second for time %d: ",i+1);

        scanf("%d",&t[i].sec);

        if(t[i].sec > 60)

        {

            printf("\n!! please enter less than 60 !!");

            getch();

            exit(0);

        }

        printf("\n\n");

    }

    for(i=0; i<2; i++)

    {

        printf("\ntime %d= %d : %d : %d",i+1,t[i].h,t[i].min,t[i].sec);

    }

    if(t[0].h > t[1].h)

    {

        hh = t[0].h - t[1].h;

    }

    else

    {

        hh = t[1].h - t[0].h;

    }

    if(t[0].min > t[1].min)

    {

        m = t[0].min - t[1].min;

    }

    else

    {

        m = t[1].min - t[0].min;

    }

    if(t[0].sec > t[1].sec)

    {

        s = t[0].sec - t[1].sec;

    }

    else

    {

        s = t[1].sec - t[0].sec;

    }

    printf("\n\ndifference between two time= %d : %d : %d",hh,m,s);

    getch();

}

/*  output:

enter time 1:

enter hour for time 1: 12

enter minute for time 1: 35

enter second for time 1: 24

enter time 2:

enter hour for time 2: 8

enter minute for time 2: 59

enter second for time 2: 46

time 1= 12 : 35 : 24

time 2= 8 : 59 : 46

difference between two time= 4 : 24 : 22

*/