求大牢修改(必关)

#include<bits/stdc++.h>
using namespace std;
struct skill{
	int harm;
	int power;
	int rank;
};
skill a[30010];
int ans[30010];
int main(){
	int k,m,n,j=1;
	cin>>k>>m>>n;
	for(int i=1;i<=m;i++){
		cin>>a[i].power>>a[i].harm;
		a[i].rank=i;
		if(a[i].power!=0&&a[i].power<=k&&(a[i].harm*floor((k/a[i].power)))>=n){
			ans[j++]=i;
		}
	}
	for(int i=1;i<j;i++) cout<<ans[i]<<" ";
	if(ans[1]==0) cout<<"-1";
	return 0;
}