```cpp
program xxx;
var
a,b,c,d,e,f,g:longint;
begin
read(a,b,c,d);
e:=(c*60+d)-(a*60+b);
f:=e div 60;
g:=e mod 60;
write(f,' ',g);
readln;
```
readln
end.
by 13965282078m0 @ 2016-11-30 21:31:51
改好了
by 13965282078m0 @ 2016-11-30 21:32:28
呵呵呵
by 黄禄嘉 @ 2016-12-04 09:11:33
大神帮忙查看if嵌套的错误
源代码如下：
```cpp
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
long long a,b,c,d,e,f;
cin>>a>>b>>c>>d;
if(c>a)
e=c-a;
else if(c<a)
e=a-c;
else if(c==a)
e=c-a;
if(d>b&&d<60)
f=d-b;
else if(d<b&&c<60)
e=b-d;
else if(d==b&&c<60)
e=b-d;
cout<<e<<" "<<f<<endl;
return 0;
}
如改成功，感激不尽！
```
by D1053727349 @ 2016-12-17 19:07:53