제출 #1000727

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
1000727	2024-06-18 07:42:34	Unforgettablepl	길고양이 (JOI20_stray)	C++17	100 / 100	68 ms	16792 KiB

Anthony

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#include <bits/stdc++.h>
using namespace std;
namespace {
vector<int> strat1(int N, int M, int A, int B,
                vector<int> U, std::vector<int> V) {
    // General Graph A=3
    vector<int> ans(M,-1);
    vector<vector<pair<int,int>>> adj(N);
    for(int i=0;i<M;i++){
        adj[U[i]].emplace_back(V[i],i);
        adj[V[i]].emplace_back(U[i],i);
    }
    vector<bool> visited(N);
    queue<pair<int,int>> q;
    q.emplace(0,0);
    while(!q.empty()){
        auto [idx,col] = q.front();q.pop();
        if(visited[idx])continue;
        visited[idx]=true;
        for(auto&i:adj[idx]){
            if(ans[i.second]==-1)ans[i.second]=col;
            if(!visited[i.first])q.emplace(i.first,(col+1)%3);
        }
    }
    return ans;
}
 
 
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Catherine

 
 
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