题解 | #小乐乐定闹钟#

#include <stdio.h>
int main()
{
    //定义变量及输入
    int n = 0;
    int m = 0;
    int k = 0;
    int count = 0;
    char ch;
    scanf("%d%c%d%d",&n,&ch,&m,&k);
    int sum = m+k;
    //功能主体
    while(sum>=60)
    {
        ++count;
        sum-=60;
    }
    if(n+count>=10)
    {
    	if((n+count)>=24)
    	{
            if(((n+count)%24)<10 && sum<10)
            {
                printf("0%d%c0%d",(n+count)%24,ch,sum);
                goto loop;
            }
    		printf("%d%c%d",(n+count)%24,ch,sum);
    		goto loop;
		}
    	printf("%d%c%d",n+count,ch,sum);
	}
	else if((n+count)<10)
	{
		printf("0%d%c%d",n+count,ch,sum);
	}
	    loop:
     return 0;
}