#include "bulb.h"
using namespace std;
int d[300003], D[300003];
int c[300003];
int b[300003];
void dfs1(int x, vector<int> &L) {
d[x] = L[x];
D[x] = 1;
if (d[x] >= 0) {
dfs1(d[x], L);
D[x] += D[d[x]];
d[x] = d[d[x]];
}
}
void dfs2(int x, vector<int> &L, vector<int> &R) {
if (L[x] >= 0) dfs2(L[x], L, R);
if (R[x] >= 0) dfs2(R[x], L, R);
c[x] = R[x] == -2 || d[R[x]] == -2 || (L[x] >= 0 && c[L[x]] == -2) ? -2 : -1;
b[x] = R[x] == -1 || d[R[x]] == -1 || (L[x] >= 0 && b[L[x]] == -1) ? -1 : -2;
}
int FindWinner(int T, std::vector<int> L, std::vector<int> R){
int i, j, k, t, N = L.size();
for (i = 0; i < N; i++) if (!d[i]) dfs1(i, L);
if (d[0] == -2) return 0;
dfs2(0, L, R);
for (i = 0, j = 1; i >= 0; i = L[i], j++) {
if (j == N || R[i] == -1 || (R[i] >= 0 && c[R[i]] == -1 && (d[R[i]] == -1 || j + D[R[i]] == N))) return 1;
if (R[i] == -2 || R[i] >= 0 && d[R[i]] == -2) break;
}
t = D[0];
for (i = j = k = 0; i >= 0; i = L[i]) {
if (R[i] == -2) return 0;
if (R[i] >= 0) {
if (d[R[i]] == -2 && b[R[i]] == -2) return 0;
t += D[R[i]];
if (b[R[i]] == -1) k++;
if (d[R[i]] != -1) j++;
}
}
return j <= 1 && k + N - t >= 1;
}
Compilation message
bulb.cpp: In function 'int FindWinner(int, std::vector<int>, std::vector<int>)':
bulb.cpp:33:31: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if (R[i] == -2 || R[i] >= 0 && d[R[i]] == -2) break;
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 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 |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 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 |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 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 |
380 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 |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 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 |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
380 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 |
392 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
392 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 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 |
380 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 |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 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 |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
380 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 |
392 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
392 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
79 ms |
7332 KB |
Output is correct |
28 |
Correct |
93 ms |
9720 KB |
Output is correct |
29 |
Correct |
96 ms |
9628 KB |
Output is correct |
30 |
Correct |
109 ms |
23708 KB |
Output is correct |
31 |
Correct |
109 ms |
23848 KB |
Output is correct |
32 |
Correct |
96 ms |
9884 KB |
Output is correct |
33 |
Correct |
97 ms |
9756 KB |
Output is correct |
34 |
Correct |
98 ms |
9768 KB |
Output is correct |
35 |
Correct |
99 ms |
9852 KB |
Output is correct |
36 |
Correct |
97 ms |
9752 KB |
Output is correct |
37 |
Correct |
98 ms |
9896 KB |
Output is correct |
38 |
Correct |
99 ms |
9872 KB |
Output is correct |
39 |
Correct |
101 ms |
9844 KB |
Output is correct |
40 |
Correct |
99 ms |
9880 KB |
Output is correct |
41 |
Correct |
100 ms |
9960 KB |
Output is correct |
42 |
Correct |
98 ms |
9872 KB |
Output is correct |
43 |
Correct |
101 ms |
9988 KB |
Output is correct |
44 |
Correct |
97 ms |
9884 KB |
Output is correct |
45 |
Correct |
98 ms |
9964 KB |
Output is correct |
46 |
Correct |
98 ms |
10008 KB |
Output is correct |
47 |
Correct |
98 ms |
13044 KB |
Output is correct |
48 |
Correct |
99 ms |
13124 KB |
Output is correct |
49 |
Correct |
96 ms |
13080 KB |
Output is correct |
50 |
Correct |
98 ms |
12820 KB |
Output is correct |