只有60分，7、8、9、10都出错，求大佬指点```cpp
#include<bits/stdc++.h>
using namespace std;
int main() {
int s, v;
cin >> s >> v;
int needh, needm;
if(s%v==0)//判断所用分钟是否为整数
needm = 10 + s / v;
else
needm = 11 + s / v;
if (needm % 60 == 0)
needm -= 60;
needh = 7 - needm / 60;
needm = 60 - needm % 60;
if(needm==60)
needm -= 60;
if (needh > 0)
printf("%02d:%02d", needh, needm);
else {
needh += 24;//考虑到前一天出发
printf("02%d:02%d", needh, needm);
}
return 0;
}
