s/t向下取整導致結果少一，應該判斷是否整除，是就a=s/t，不然a=s/t+1
by IMPOSTORrrrrrr @ 2023-09-29 14:33:25
就像這樣
```c
#include<iostream>
using namespace std;
int m,t,s,c;
int main(){
cin>>m>>t>>s;
if(t==0)cout<<0;
else{
if(s%t==0)c=s/t;
else c=s/t+1;
m-=c;
if(m<0)m=0;
cout<<m;
}
}
```
by IMPOSTORrrrrrr @ 2023-09-29 14:34:31
@[IMPOSTORrrrrrr](/user/1067755) 谢谢 ， AC了
by Harry2023 @ 2023-09-29 14:46:15