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Submission #1020154

# Submission time Handle Problem Language Result Execution time Memory
1020154 2024-07-11T16:03:05 Z Issa Werewolf (IOI18_werewolf) C++17
15 / 100
 127 ms 73776 KB 
#include <bits/stdc++.h>
using namespace std;

const int maxn = 3e3 + 100;

int n;
int pref[maxn][maxn];
int suf[maxn][maxn];
vector<int> g[maxn];

int get(int v, int p[]){
    if(p[v] == v) return v;
    return p[v] = get(p[v], p);
}

void join(int a, int b, int p[]){
    p[get(a, p)] = get(b, p);
}

void add(vector<int> &v){
    for(int &x: v) x++;
}

vector<int> check_validity(int N, std::vector<int> X, std::vector<int> Y,
                                std::vector<int> S, std::vector<int> E,
                                std::vector<int> L, std::vector<int> R){
    add(X); add(Y); add(S); add(E); add(L); add(R);
    for(int i = 0; i < X.size(); i++){
        g[X[i]].push_back(Y[i]);
        g[Y[i]].push_back(X[i]);
    }
    n = N;
    for(int i = 1; i <= n; i++){
        pref[0][i] = suf[n+1][i] = i;
    }
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            pref[i][j] = pref[i-1][j];
        }
        for(int to: g[i]){
            if(to < i) join(to, i, pref[i]);
        }
    }
    for(int i = n; i > 0; i--){
        for(int j = 1; j <= n; j++){
            suf[i][j] = suf[i+1][j];
        }
        for(int to: g[i]){
            if(to > i) join(to, i, suf[i]);
        }
    }
    vector<int> ans;
    for(int i = 0; i < S.size(); i++){
        int s = S[i], e = E[i];
        int l = L[i], r = R[i];
        int res = 0;
        for(int k = l; k <= r; k++){
            if(get(s, suf[l]) == get(k, suf[l]) && get(k, pref[r]) == get(e, pref[r])){
                res = 1;
            }
        }
        ans.push_back(res);
    }
    return ans;
}

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:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i = 0; i < X.size(); i++){
      |                    ~~^~~~~~~~~~
werewolf.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     for(int i = 0; i < S.size(); i++){
      |                    ~~^~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2820 KB Output is correct
2 Correct 1 ms 1368 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2820 KB Output is correct
2 Correct 1 ms 1368 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 80 ms 73680 KB Output is correct
11 Correct 80 ms 73688 KB Output is correct
12 Correct 60 ms 73548 KB Output is correct
13 Correct 74 ms 73564 KB Output is correct
14 Correct 63 ms 73556 KB Output is correct
15 Correct 69 ms 73776 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Runtime error 127 ms 50256 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2820 KB Output is correct
2 Correct 1 ms 1368 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 80 ms 73680 KB Output is correct
11 Correct 80 ms 73688 KB Output is correct
12 Correct 60 ms 73548 KB Output is correct
13 Correct 74 ms 73564 KB Output is correct
14 Correct 63 ms 73556 KB Output is correct
15 Correct 69 ms 73776 KB Output is correct
16 Runtime error 127 ms 50256 KB Execution killed with signal 11
17 Halted 0 ms 0 KB -