Submission #1250128

#	Time	Username	Problem	Language	Result	Execution time	Memory
1250128		ezzzay	World Map (IOI25_worldmap)	C++20	29 / 100	24 ms	3144 KiB

worldmap

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
vector<int>adj[50];
vector<int>rt;
map< pair<int,int> ,bool> vis;
void dfs(int a, int p){
	vis[{a,p}]=1;
	vis[{p,a}]=1;
	for(auto b:adj[a]){
		if(vis[{a,b}])continue;
		rt.pb(a);
		dfs(b,a);
	}
	rt.pb(a);
}
std::vector<std::vector<int>> create_map(int N, int M, std::vector<int> A, std::vector<int> B) {
	vis.clear();
	for(int i=1;i<=N;i++){
		adj[i].clear();
	}
	for(int i=0;i<M;i++){
		adj[A[i]].pb(B[i]);
		adj[B[i]].pb(A[i]);
	}
	rt.clear();
	dfs(1,0);
	int h=rt.size();
	vector< vector< int> > v(h, vector<int> (h));
	
	for(int i=0;i<h;i++){
		for(int j=0;j<h;j++){
			v[i][j]=v[j][i]=rt[i];
		}
	}
	return v;
	
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 7
• Subtask 4: 0 / 8
• Subtask 5: 14 / 14
• Subtask 6: 0 / 56