답안 #720689

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
720689	2023-04-08T23:50:57 Z	Yell0	Kutije (COCI21_kutije)	C++17	컴파일 오류	0 ms	0 KB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
const int MN=1002;
int n,m,q;
vector<int> adj[MN];
bool vis[MN];
ordered_set dest[MN];
 
void dfs(int u,int p) {
    vis[u]=1;
    dest[p].insert(u);
    for(int v:adj[u])
        if(!vis[v])
            dfs(v,p);
}
 
int main() {
    ios::sync_with_stdio(0);cin.tie(0);
    cin>>n>>m>>q;
    for(int i=1;i<=m;i++)
        for(int u=1,v;u<=n;u++) {
            cin>>v;
            adj[v].push_back(u);
        }
    for(int i=1;i<=n;i++) {
        memset(vis,0,sizeof(vis));
        dfs(i,i);
    }
    int a,b;
    while(q--) {
        cin>>a>>b;
        if(dest[a].count(b)) cout<<"DA\n";
        else cout<<"NE\n";
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:37:20: error: 'ordered_set' {aka 'class __gnu_pbds::tree<int, __gnu_pbds::null_type, std::less<int>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>'} has no member named 'count'
   37 |         if(dest[a].count(b)) cout<<"DA\n";
      |                    ^~~~~