# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
964452 | TAhmed33 | 늑대인간 (IOI18_werewolf) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#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) {
n = N; m = (int)X.size(); q = S.size();
int dp[n][n], dq[n][n]; //min edge, max edge
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
dp[i][j] = -1e9; dq[i][j] = 1e9;
}
dp[i][i] = dq[i][i] = i;
}
for (int i = 0; i < m; i++) {
dp[X[i]][Y[i]] = dp[Y[i]][X[i]] = min(Y[i], X[i]);
dq[X[i]][Y[i]] = dq[Y[i]][X[i]] = max(Y[i], X[i]);
}
for (int k = 0; k < n; k++) {
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
dp[i][j] = max(dp[i][j], min(dp[i][k], dp[k][j]));
dq[i][j] = min(dq[i][j], max(dq[i][k], dq[k][j]));
}
}
}
vector <int> ret;
for (int i = 0; i < q; i++) {
int flag = 0;
int a = S[i], b = E[i];
for (int j = 0; j < n; j++) {
flag |= dp[a][j] >= L[i] && dq[j][b] <= R[i];
}
ret.push_back(flag);
}
return ret;
}