#include "werewolf.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int e[200000];
int par1[200000][20], par2[200000][20];
int find(int u)
{
return e[u] == u ? u : e[u] = find(e[u]);
}
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 Q = S.size(), M = X.size();
vector<int> A(Q, 0);
for (int i = 0; i < N; i++)
par1[i][0] = par2[i][0] = i;
vector<vector<int>> g(N);
for (int i = 0; i < M; i++)
{
g[X[i]].push_back(Y[i]);
g[Y[i]].push_back(X[i]);
}
for (int i = 0; i < N; i++)
e[i] = i;
for (int u = 0; u < N; u++)
for (int v : g[u])
if (v < u)
{
v = find(v);
e[v] = u;
par1[v][0] = u;
}
for (int i = 0; i < N; i++)
e[i] = i;
for (int u = N - 1; u >= 0; u--)
for (int v : g[u])
if (v > u)
{
v = find(v);
e[v] = u;
par2[v][0] = u;
}
for (int k = 1; k < 20; k++)
for (int u = 0; u < N; u++)
{
par1[u][k] = par1[par1[u][k-1]][k-1];
par2[u][k] = par2[par2[u][k-1]][k-1];
}
for (int i = 0; i < Q; i++)
{
for (int k = 19; k >= 0; k--)
{
if (par2[S[i]][k] >= L[i])
S[i] = par2[S[i]][k];
if (par1[E[i]][k] <= R[i])
E[i] = par1[E[i]][k];
}
for (int k = 19; k >= 0; k--)
if (par1[S[i]][k] <= R[i])
S[i] = par1[S[i]][k];
A[i] = (S[i] == E[i] && L[i] <= S[i] && S[i] <= R[i]);
}
return A;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
283 ms |
53560 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |