Exercise 9-1 time conversion

exercises 9-1 Time conversion (15 branch )

This question requires the preparation of procedures , With hh:mm:ss Output in the format of... After a given time n Time value after seconds （ exceed 23:59:59 From 0 The clock starts at ）.

Input format ：

Enter in the first line with hh:mm:ss The format of gives the start time , The second line gives the number of whole seconds n（<60）.

Output format ：

The output is given on one line hh:mm:ss Result time in format .

sample input ：

11:59:40
30

sample output ：

12:00:10

Code  

#include<stdio.h>
int main(){
    int h,m,s,n;
    scanf("%d:%d:%d",&h,&m,&s);
    scanf("%d",&n);
    if(s+n>=60){
        m++;
        s+=n-60;
    }else{
        s+=n;
    }
    if(m>=60){
        h++;
        m-=60;
    }
    if(h>=24){
        h-=24;
    }
    printf("%02d:%02d:%02d",h,m,s);
    return 0;
}