Submission #729639

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
729639	2023-04-24 10:09:50	t6twotwo	Werewolf (IOI18_werewolf)	C++17	49 / 100	746 ms	73068 KiB

werewolf

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#include "werewolf.h"
#include <bits/stdc++.h>
using namespace std;
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();
    int Q = S.size();
    vector<vector<int>> adj(N);
    for (int i = 0; i < M; i++) {
        adj[X[i]].push_back(Y[i]);
        adj[Y[i]].push_back(X[i]);
    }
    if (N <= 3000 && M <= 6000 && Q <= 3000) {
        vector<int> p(N);
        function<int(int)> find = [&](int x) {
            return x == p[x] ? x : p[x] = find(p[x]);
        };
        vector<vector<int>> s(N);
        auto unite = [&](int x, int y) {
            x = find(x);
            y = find(y);
            if (x == y) {
                return;
            }
            if (s[x].size() > s[y].size()) {
                swap(x, y);
            }
            for (int z : s[x]) {
                p[z] = y;
                s[y].push_back(z);
            }
 
 
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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:90:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 |         while (A.size() < N) {
      |                ~~~~~~~~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 34 / 34
• Subtask 4: 0 / 51