Submission #75793

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
75793	2018-09-11 06:54:34	tmwilliamlin168	Werewolf (IOI18_werewolf)	C++14	100 / 100	772 ms	65844 KiB

werewolf

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#include "werewolf.h"
#include <bits/stdc++.h>
using namespace std;
const int mxN=2e5;
int n, q, p[mxN], st[2][mxN], en[2][mxN], dt, anc[2][mxN], r[mxN], ta[mxN], ft[mxN+1];
vector<int> adj1[mxN], adj2[mxN];
vector<array<int, 2>> b[mxN+1];
bool d[mxN];
int find(int x) {
  return x==r[x]?x:(r[x]=find(r[x]));
}
void dfs(int u, int st[mxN], int en[mxN]) {
  st[u]=dt++;
  for(int v : adj2[u])
    dfs(v, st, en);
  en[u]=dt;
}
void a(int st[mxN], int en[mxN], int anc[mxN]) {
  for(int i=0; i<n; ++i)
    r[i]=i;
  for(int i=0; i<n; ++i) {
    for(int j : adj1[p[i]]) {
      if(!d[j]||(j=find(j))==p[i])
        continue;
      r[j]=p[i];
      adj2[p[i]].push_back(j);
 
 
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Compilation message (stderr)

werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:49:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<x.size(); ++i) {
               ~^~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 34 / 34
• Subtask 4: 51 / 51