然后是几点

 1 #include<stdio.h>
 2 
 3 int main(void)
 4 {
 5     int start;
 6     int time;
 7     
 8     scanf_s("%d %d", &start, &time);
 9 
10     int start_minute = start / 100 * 60 + start % 100;
11     int end_minute = start_minute + time;
12 
13     printf("%d%02d", end_minute / 60, end_minute % 60);
14     
15     return 0;
16 }