靠，这题坑死了。
有除数为零的
我过了‘
```cpp
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<iomanip>
#include<ctime>
#include<set>
#include<vector>
#include<list>
#include<cmath>
#include<cstdlib>
#include<string>
#include<cstring>
#include<fstream>
#include<queue>
#include<stack>
using namespace std;
int main()
{
long long k,m,n,a,b,c,i,j,df;
bool d;
cin>>k>>m>>n;
df=0;
d=false;
for(i=1;i<=m;++i)
{
cin>>a>>b;
if(a==0)
{
if(df>0)
cout<<" "<<i;
else
cout<<i;
continue;
}
//j=k/a;
c=0;
for(j=0;j<k/a;++j)
c+=b;
if(c>=n)
{
if(df>0)
cout<<" "<<i;
else
cout<<i;
df++;
d=true;
}
}
if(d==false)
cout<<"-1";
return 0;
}
```
by sbcxknmsl @ 2017-02-11 12:15:44
懂了
by LinAPro @ 2018-05-15 18:36:58