#include "bulb.h"
#include <bits/stdc++.h>
using namespace std;
bool red[300055];
void dfs(int v, vector<int> &L, vector<int> &R) {
if (v < 0) return;
if (L[v] == -1) {
red[v] = true;
}
dfs(L[v], L, R);
dfs(R[v], L, R);
if (L[v] >= 0) {
red[v] |= red[L[v]];
}
}
int FindWinner(int T, std::vector<int> L, std::vector<int> R){
int N = L.size();
int v = 0;
vector<int> vec;
while (v >= 0) {
vec.push_back(v);
v = L[v];
}
if (v == -2) return 0;
dfs(0, L, R);
vec.push_back(-1);
for (int i = 0; i < (int)vec.size(); i++) {
vector<int> temp;
for (int j = 0; j <= i; j++) {
temp.push_back(vec[j]);
}
if (temp.back() >= 0) {
temp.push_back(R[temp.back()]);
}
while (temp.back() >= 0) {
temp.push_back(L[temp.back()]);
}
if (temp.back() == -2 && temp.size() - 1 < N) continue;
bool bad = false;
for (int j = 0; j < (int)temp.size(); j++) {
if (j == i) continue;
if (temp[j] >= 0) {
if (R[temp[j]] == -2) {
bad = true;
break;
}
if (R[temp[j]] == -1) {
continue;
}
if (!red[R[temp[j]]]) {
bad = true;
break;
}
}
}
if (!bad) {
return 1;
}
}
return 0;
}
Compilation message
bulb.cpp: In function 'int FindWinner(int, std::vector<int>, std::vector<int>)':
bulb.cpp:52:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (temp.back() == -2 && temp.size() - 1 < N) continue;
~~~~~~~~~~~~~~~~^~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
428 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
292 KB |
Output is correct |
| 6 |
Correct |
2 ms |
252 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
256 KB |
Output is correct |
| 10 |
Correct |
2 ms |
256 KB |
Output is correct |
| 11 |
Correct |
2 ms |
348 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
32 ms |
252 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
428 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
292 KB |
Output is correct |
| 8 |
Correct |
2 ms |
252 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
256 KB |
Output is correct |
| 12 |
Correct |
2 ms |
256 KB |
Output is correct |
| 13 |
Correct |
2 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
376 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
2 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
2 ms |
380 KB |
Output is correct |
| 22 |
Correct |
2 ms |
256 KB |
Output is correct |
| 23 |
Correct |
2 ms |
420 KB |
Output is correct |
| 24 |
Correct |
2 ms |
376 KB |
Output is correct |
| 25 |
Correct |
3 ms |
376 KB |
Output is correct |
| 26 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
32 ms |
252 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
428 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
292 KB |
Output is correct |
| 8 |
Correct |
2 ms |
252 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
256 KB |
Output is correct |
| 12 |
Correct |
2 ms |
256 KB |
Output is correct |
| 13 |
Correct |
2 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
376 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
2 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
2 ms |
380 KB |
Output is correct |
| 22 |
Correct |
2 ms |
256 KB |
Output is correct |
| 23 |
Correct |
2 ms |
420 KB |
Output is correct |
| 24 |
Correct |
2 ms |
376 KB |
Output is correct |
| 25 |
Correct |
3 ms |
376 KB |
Output is correct |
| 26 |
Correct |
2 ms |
376 KB |
Output is correct |
| 27 |
Correct |
70 ms |
6168 KB |
Output is correct |
| 28 |
Correct |
80 ms |
6412 KB |
Output is correct |
| 29 |
Correct |
83 ms |
6428 KB |
Output is correct |
| 30 |
Correct |
92 ms |
16764 KB |
Output is correct |
| 31 |
Correct |
93 ms |
16532 KB |
Output is correct |
| 32 |
Correct |
83 ms |
6128 KB |
Output is correct |
| 33 |
Correct |
82 ms |
6812 KB |
Output is correct |
| 34 |
Correct |
81 ms |
7132 KB |
Output is correct |
| 35 |
Correct |
82 ms |
6136 KB |
Output is correct |
| 36 |
Correct |
83 ms |
6508 KB |
Output is correct |
| 37 |
Correct |
82 ms |
6172 KB |
Output is correct |
| 38 |
Correct |
82 ms |
6560 KB |
Output is correct |
| 39 |
Correct |
82 ms |
6648 KB |
Output is correct |
| 40 |
Correct |
82 ms |
5904 KB |
Output is correct |
| 41 |
Correct |
82 ms |
5752 KB |
Output is correct |
| 42 |
Correct |
82 ms |
6540 KB |
Output is correct |
| 43 |
Correct |
82 ms |
6748 KB |
Output is correct |
| 44 |
Correct |
83 ms |
6492 KB |
Output is correct |
| 45 |
Correct |
82 ms |
6180 KB |
Output is correct |
| 46 |
Correct |
81 ms |
6428 KB |
Output is correct |
| 47 |
Correct |
83 ms |
8332 KB |
Output is correct |
| 48 |
Correct |
84 ms |
8944 KB |
Output is correct |
| 49 |
Correct |
84 ms |
9028 KB |
Output is correct |
| 50 |
Correct |
83 ms |
7792 KB |
Output is correct |
