29 lines
440 B
C++
29 lines
440 B
C++
#include<cstdio>
|
|
#include<vector>
|
|
#include<map>
|
|
using namespace std;
|
|
map<int,vector<int>> mp;
|
|
int n,m,x,y;
|
|
int main()
|
|
{
|
|
#ifdef local
|
|
freopen("pro.in","r",stdin);
|
|
#endif
|
|
while(scanf("%d%d",&n,&m)==2)
|
|
{
|
|
mp.clear();
|
|
for(int i=0;i<n;i++)
|
|
{
|
|
scanf("%d",&x);
|
|
mp[x].push_back(i+1);
|
|
}
|
|
while(m--)
|
|
{
|
|
scanf("%d%d",&x,&y);
|
|
if(!mp.count(y)||mp[y].size()<x) printf("0\n");
|
|
else printf("%d\n",mp[y][x-1]);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|