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Submission #968815

# Submission time Handle Problem Language Result Execution time Memory
968815 2024-04-24T06:36:53 Z duckindog Werewolf (IOI18_werewolf) C++17
0 / 100
 106 ms 27976 KB 
#include <bits/stdc++.h>
#include "werewolf.h"

using namespace std;

const int N = 3'000 + 10;
vector<int> ad[N];
bool f[N][2], vt[N];
int mk[N];

vector<int> check_validity(int n, vector<int> x, vector<int> y,
                                vector<int> s, vector<int> e,
                                vector<int> l, vector<int> r) {
  int m = x.size(), q = s.size();
  for (int i = 0; i < m; ++i) { 
    int u = x[i], v = y[i];
    ad[u].push_back(v);
    ad[v].push_back(u);
  }
  
  vector<int> answer;
  for (int i = 0; i < q; ++i) { 
    for (int j = 0; j < n; ++j) mk[j] = (j < l[i] ? 0 : j <= r[i] ? 1 : 2);
    
    memset(f, false, sizeof f);
    memset(vt, false, sizeof vt);

    queue<int> que;
    f[s[i]][0] = vt[s[i]] = true;
    if (mk[s[i]] == 1) f[s[i]][1] = true;
    que.push(s[i]);
    while (que.size()) { 
      auto u = que.front(); que.pop();
      for (const auto& v : ad[u]) { 
        if (vt[v]) continue;
        vt[v] = true;
        if (mk[v] >= 1) f[v][0] = f[u][0];
        if (mk[v] <= 1) f[v][1] = (f[u][1] || f[u][0] && mk[v] == 1);
        if (f[v][0] || f[v][1]) que.push(v);
      }
    }
    
    answer.push_back(f[e[i]][1]);
  }
  return answer;
}

Compilation message

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:38:55: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   38 |         if (mk[v] <= 1) f[v][1] = (f[u][1] || f[u][0] && mk[v] == 1);
      |                                               ~~~~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Runtime error 106 ms 27976 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -