Submission #1202698

#TimeUsernameProblemLanguageResultExecution timeMemory
1202698KavelmydexGame (APIO22_game)C++20
0 / 100
11 ms23736 KiB
/* ============================ ============================ 3 2 2 1 2 1 0 ans: 1 */ #include "game.h" #include <bits/stdc++.h> using namespace std; #define ll long long #define vi vector<int> #define pb push_back const int N=5e5+10; vi adj[N][2]; bool vis[N][2]; int n,k; void init(int cn, int ck){ n=cn,k=ck; for(int i=0;i<k;++i){ vis[i][0]=vis[i][1]=1; } for(int i=0;i<n;++i)adj[i][0].clear(), adj[i][1].clear(); } void dfs(int x,int j){ vis[x][j]=1; for(int i:adj[x][j])if(!vis[i][j]) dfs(i,j); } int add_teleporter(int u, int v){ adj[u][0].pb(v); adj[v][1].pb(u); if(vis[u][0]) dfs(v,0); if(vis[v][1]) dfs(u,1); return (vis[u][0] && vis[v][1]); }
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