ural 1613 For Fans of Statistics

时间:2023-03-09 17:45:33
ural 1613 For Fans of Statistics
 #include <cstdio>
#include <cstring>
#include <map>
#include <vector>
#include <algorithm>
using namespace std;
map<int,vector<int> >t;
vector<int>::iterator it;
int main()
{
int n,x;
scanf("%d",&n);
for(int i=; i<=n; i++)
{
scanf("%d",&x);
t[x].push_back(i);
}
int m,r,l;
scanf("%d",&m);
for(int i=; i<=m; i++)
{
scanf("%d%d%d",&l,&r,&x);
it=lower_bound(t[x].begin(),t[x].end(),l);
if(it==t[x].end()) printf("");
else if((*it)<=r) printf("");
else printf("");
}
printf("\n");
return ;
}