Submission #1363819

#	Time	Username	Problem	Language	Result	Execution time	Memory
1363819		yyc000123	Toy Design (EGOI22_toydesign)	C++20	0 / 100	39 ms	660 KiB

Main

#include<bits/stdc++.h>
using namespace std ;
#define F first
#define S second
const int N = 205 ;
int n ;
vector<pair<int,int>> edges ;

int main(){
    cin >> n ;
    for(int i=1 ; i<=n ; i++){
        for(int j=i+1 ; j<=n ; j++){
            cout << "? " << '0' << ' ' << i << ' ' << j << endl ;
            int k ; cin >> k ;
            if(!k) edges.push_back({i,j}) ;
        }
    }
    cout << "! " << edges.size() << endl ;
    for(auto it:edges) cout << it.F << ' ' << it.S << endl ;
    return 0 ;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 35
• Subtask 4: 0 / 35