Submission #465403

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
465403	2021-08-15 21:25:05	dutch	Werewolf (IOI18_werewolf)	C++17	100 / 100	653 ms	60312 KiB

werewolf

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#include <bits/stdc++.h>
using namespace std;
#include "werewolf.h"
typedef vector<int> vi;
#define vii(Z) iota(begin(Z), end(Z), 0)
 
const int Z = 2e5;
 
int Q, k, dfsTimer;
int e[Z], r[Z], lca[2][Z], st[2*Z], tL[2][Z], tR[2][Z];
vi g[2][Z], g2[Z];
int find(int u){
  return e[u] < 0 ? u : e[u] = find(e[u]);
}
 
void dfs(int u){
  tL[k][u] = ++dfsTimer;
  for(int &v : g2[u]) dfs(v);
  tR[k][u] = dfsTimer;
}
 
vi check_validity(int N, vi X, vi Y, vi S, vi E, vi L, vi R){
  Q = size(S);
  for(int i=size(X); --i>=0; ){
    if(X[i] > Y[i]) swap(X[i], Y[i]);
    g[0][Y[i]].push_back(X[i]);
    g[1][X[i]].push_back(Y[i]);
  }
  
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 34 / 34
• Subtask 4: 51 / 51