#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif
void build(vector<vector<int>>);
struct dsu {
vector<int> p;
vector<int> sz;
int n;
dsu(int _n) : n(_n) {
p.resize(n);
iota(p.begin(), p.end(), 0);
sz.assign(n, 1);
}
inline int get(int x) {
if (p[x] == x) {
return x;
} else {
return p[x] = get(p[x]);
}
}
inline bool unite(int x, int y) {
x = get(x);
y = get(y);
if (x == y) {
return false;
}
if (sz[x] > sz[y]) {
swap(x, y);
}
p[x] = y;
sz[y] += sz[x];
return true;
}
inline bool same(int x, int y) {
return (get(x) == get(y));
}
};
int construct(vector<vector<int>> p) {
int n = (int) p.size();
dsu uf1(n);
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (p[i][j] == 1) {
uf1.unite(i, j);
}
}
}
vector<vector<int>> res(n, vector<int>(n));
vector<vector<int>> c(n);
for (int i = 0; i < n; i++) {
c[uf1.get(i)].emplace_back(i);
}
for (int i = 0; i < n; i++) {
for (int j = 1; j < (int) c[i].size(); j++) {
res[c[i][0]][c[i][j]] = res[c[i][j]][c[i][0]] = 1;
}
}
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (p[i][j] != p[uf1.get(i)][uf1.get(j)]) {
return 0;
}
}
}
dsu uf2(n);
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (uf1.get(i) == i && uf1.get(j) == j && p[i][j] == 2) {
uf2.unite(i, j);
}
}
}
c = vector<vector<int>>(n);
for (int i = 0; i < n; i++) {
if (uf1.get(i) == i) {
c[uf2.get(i)].emplace_back(i);
}
}
for (int i = 0; i < n; i++) {
int sz = (int) c[i].size();
if (sz == 0 || sz == 1) {
continue;
}
if (sz == 2) {
return 0;
}
for (int j = 0; j < sz; j++) {
res[c[i][j]][c[i][(j + 1) % sz]] = res[c[i][(j + 1) % sz]][c[i][j]] = 1;
}
for (int x = 0; x < sz; x++) {
for (int y = x + 1; y < sz; y++) {
if (p[c[i][x]][c[i][y]] != 2) {
return 0;
}
}
}
}
build(res);
return 1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
13 ms |
1180 KB |
Output is correct |
7 |
Correct |
167 ms |
22000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
13 ms |
1180 KB |
Output is correct |
7 |
Correct |
167 ms |
22000 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
15 ms |
1100 KB |
Output is correct |
13 |
Correct |
212 ms |
22084 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
8 ms |
736 KB |
Output is correct |
17 |
Correct |
128 ms |
12156 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
63 ms |
5720 KB |
Output is correct |
21 |
Correct |
270 ms |
22012 KB |
Output is correct |
22 |
Correct |
224 ms |
22024 KB |
Output is correct |
23 |
Correct |
276 ms |
22020 KB |
Output is correct |
24 |
Correct |
265 ms |
22100 KB |
Output is correct |
25 |
Correct |
145 ms |
12160 KB |
Output is correct |
26 |
Correct |
101 ms |
12156 KB |
Output is correct |
27 |
Correct |
285 ms |
22008 KB |
Output is correct |
28 |
Correct |
212 ms |
22024 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
7 ms |
1092 KB |
Output is correct |
9 |
Correct |
203 ms |
22052 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
8 ms |
1100 KB |
Output is correct |
13 |
Correct |
285 ms |
22068 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
4 ms |
716 KB |
Output is correct |
17 |
Correct |
116 ms |
12168 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
21 |
Correct |
49 ms |
5780 KB |
Output is correct |
22 |
Correct |
183 ms |
22012 KB |
Output is correct |
23 |
Correct |
191 ms |
22036 KB |
Output is correct |
24 |
Correct |
207 ms |
22048 KB |
Output is correct |
25 |
Correct |
106 ms |
12156 KB |
Output is correct |
26 |
Correct |
84 ms |
12156 KB |
Output is correct |
27 |
Correct |
204 ms |
22008 KB |
Output is correct |
28 |
Correct |
202 ms |
22008 KB |
Output is correct |
29 |
Correct |
68 ms |
12100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
46 ms |
5772 KB |
Output is correct |
5 |
Correct |
251 ms |
22008 KB |
Output is correct |
6 |
Correct |
195 ms |
22008 KB |
Output is correct |
7 |
Correct |
234 ms |
22008 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
46 ms |
5776 KB |
Output is correct |
10 |
Correct |
240 ms |
22084 KB |
Output is correct |
11 |
Correct |
192 ms |
22076 KB |
Output is correct |
12 |
Correct |
218 ms |
22064 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
46 ms |
5704 KB |
Output is correct |
17 |
Correct |
178 ms |
22036 KB |
Output is correct |
18 |
Correct |
223 ms |
22084 KB |
Output is correct |
19 |
Correct |
238 ms |
22100 KB |
Output is correct |
20 |
Correct |
251 ms |
22100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
13 ms |
1180 KB |
Output is correct |
7 |
Correct |
167 ms |
22000 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
15 ms |
1100 KB |
Output is correct |
13 |
Correct |
212 ms |
22084 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
8 ms |
736 KB |
Output is correct |
17 |
Correct |
128 ms |
12156 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
63 ms |
5720 KB |
Output is correct |
21 |
Correct |
270 ms |
22012 KB |
Output is correct |
22 |
Correct |
224 ms |
22024 KB |
Output is correct |
23 |
Correct |
276 ms |
22020 KB |
Output is correct |
24 |
Correct |
265 ms |
22100 KB |
Output is correct |
25 |
Correct |
145 ms |
12160 KB |
Output is correct |
26 |
Correct |
101 ms |
12156 KB |
Output is correct |
27 |
Correct |
285 ms |
22008 KB |
Output is correct |
28 |
Correct |
212 ms |
22024 KB |
Output is correct |
29 |
Correct |
0 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
204 KB |
Output is correct |
35 |
Correct |
1 ms |
204 KB |
Output is correct |
36 |
Correct |
7 ms |
1092 KB |
Output is correct |
37 |
Correct |
203 ms |
22052 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
204 KB |
Output is correct |
40 |
Correct |
8 ms |
1100 KB |
Output is correct |
41 |
Correct |
285 ms |
22068 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
1 ms |
204 KB |
Output is correct |
44 |
Correct |
4 ms |
716 KB |
Output is correct |
45 |
Correct |
116 ms |
12168 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
1 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
49 ms |
5780 KB |
Output is correct |
50 |
Correct |
183 ms |
22012 KB |
Output is correct |
51 |
Correct |
191 ms |
22036 KB |
Output is correct |
52 |
Correct |
207 ms |
22048 KB |
Output is correct |
53 |
Correct |
106 ms |
12156 KB |
Output is correct |
54 |
Correct |
84 ms |
12156 KB |
Output is correct |
55 |
Correct |
204 ms |
22008 KB |
Output is correct |
56 |
Correct |
202 ms |
22008 KB |
Output is correct |
57 |
Correct |
68 ms |
12100 KB |
Output is correct |
58 |
Correct |
1 ms |
288 KB |
Output is correct |
59 |
Correct |
1 ms |
204 KB |
Output is correct |
60 |
Correct |
4 ms |
844 KB |
Output is correct |
61 |
Correct |
91 ms |
14060 KB |
Output is correct |
62 |
Correct |
0 ms |
204 KB |
Output is correct |
63 |
Correct |
1 ms |
204 KB |
Output is correct |
64 |
Correct |
1 ms |
204 KB |
Output is correct |
65 |
Correct |
60 ms |
6228 KB |
Output is correct |
66 |
Correct |
110 ms |
14060 KB |
Output is correct |
67 |
Correct |
121 ms |
14084 KB |
Output is correct |
68 |
Correct |
83 ms |
14064 KB |
Output is correct |
69 |
Correct |
76 ms |
14060 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
13 ms |
1180 KB |
Output is correct |
7 |
Correct |
167 ms |
22000 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
15 ms |
1100 KB |
Output is correct |
13 |
Correct |
212 ms |
22084 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
8 ms |
736 KB |
Output is correct |
17 |
Correct |
128 ms |
12156 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
63 ms |
5720 KB |
Output is correct |
21 |
Correct |
270 ms |
22012 KB |
Output is correct |
22 |
Correct |
224 ms |
22024 KB |
Output is correct |
23 |
Correct |
276 ms |
22020 KB |
Output is correct |
24 |
Correct |
265 ms |
22100 KB |
Output is correct |
25 |
Correct |
145 ms |
12160 KB |
Output is correct |
26 |
Correct |
101 ms |
12156 KB |
Output is correct |
27 |
Correct |
285 ms |
22008 KB |
Output is correct |
28 |
Correct |
212 ms |
22024 KB |
Output is correct |
29 |
Correct |
0 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
204 KB |
Output is correct |
35 |
Correct |
1 ms |
204 KB |
Output is correct |
36 |
Correct |
7 ms |
1092 KB |
Output is correct |
37 |
Correct |
203 ms |
22052 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
204 KB |
Output is correct |
40 |
Correct |
8 ms |
1100 KB |
Output is correct |
41 |
Correct |
285 ms |
22068 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
1 ms |
204 KB |
Output is correct |
44 |
Correct |
4 ms |
716 KB |
Output is correct |
45 |
Correct |
116 ms |
12168 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
1 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
49 ms |
5780 KB |
Output is correct |
50 |
Correct |
183 ms |
22012 KB |
Output is correct |
51 |
Correct |
191 ms |
22036 KB |
Output is correct |
52 |
Correct |
207 ms |
22048 KB |
Output is correct |
53 |
Correct |
106 ms |
12156 KB |
Output is correct |
54 |
Correct |
84 ms |
12156 KB |
Output is correct |
55 |
Correct |
204 ms |
22008 KB |
Output is correct |
56 |
Correct |
202 ms |
22008 KB |
Output is correct |
57 |
Correct |
68 ms |
12100 KB |
Output is correct |
58 |
Correct |
0 ms |
204 KB |
Output is correct |
59 |
Correct |
0 ms |
204 KB |
Output is correct |
60 |
Correct |
1 ms |
204 KB |
Output is correct |
61 |
Correct |
46 ms |
5772 KB |
Output is correct |
62 |
Correct |
251 ms |
22008 KB |
Output is correct |
63 |
Correct |
195 ms |
22008 KB |
Output is correct |
64 |
Correct |
234 ms |
22008 KB |
Output is correct |
65 |
Correct |
0 ms |
204 KB |
Output is correct |
66 |
Correct |
46 ms |
5776 KB |
Output is correct |
67 |
Correct |
240 ms |
22084 KB |
Output is correct |
68 |
Correct |
192 ms |
22076 KB |
Output is correct |
69 |
Correct |
218 ms |
22064 KB |
Output is correct |
70 |
Correct |
0 ms |
204 KB |
Output is correct |
71 |
Correct |
0 ms |
204 KB |
Output is correct |
72 |
Correct |
1 ms |
204 KB |
Output is correct |
73 |
Correct |
46 ms |
5704 KB |
Output is correct |
74 |
Correct |
178 ms |
22036 KB |
Output is correct |
75 |
Correct |
223 ms |
22084 KB |
Output is correct |
76 |
Correct |
238 ms |
22100 KB |
Output is correct |
77 |
Correct |
251 ms |
22100 KB |
Output is correct |
78 |
Correct |
1 ms |
288 KB |
Output is correct |
79 |
Correct |
1 ms |
204 KB |
Output is correct |
80 |
Correct |
4 ms |
844 KB |
Output is correct |
81 |
Correct |
91 ms |
14060 KB |
Output is correct |
82 |
Correct |
0 ms |
204 KB |
Output is correct |
83 |
Correct |
1 ms |
204 KB |
Output is correct |
84 |
Correct |
1 ms |
204 KB |
Output is correct |
85 |
Correct |
60 ms |
6228 KB |
Output is correct |
86 |
Correct |
110 ms |
14060 KB |
Output is correct |
87 |
Correct |
121 ms |
14084 KB |
Output is correct |
88 |
Correct |
83 ms |
14064 KB |
Output is correct |
89 |
Correct |
76 ms |
14060 KB |
Output is correct |
90 |
Correct |
0 ms |
204 KB |
Output is correct |
91 |
Correct |
1 ms |
204 KB |
Output is correct |
92 |
Correct |
4 ms |
844 KB |
Output is correct |
93 |
Correct |
106 ms |
14068 KB |
Output is correct |
94 |
Correct |
1 ms |
296 KB |
Output is correct |
95 |
Correct |
0 ms |
204 KB |
Output is correct |
96 |
Incorrect |
0 ms |
204 KB |
Answer gives possible 1 while actual possible 0 |
97 |
Halted |
0 ms |
0 KB |
- |