#include "supertrees.h"
#include <algorithm>
#include <string.h>
#include <iostream>
#include <stdio.h>
#include <vector>
#include <queue>
#include <cmath>
#include <set>
#include <map>
using namespace std;
#define N 1010
#define ff first
#define ss second
#define ll long long
#define pb push_back
#define mod 1000000007
#define pii pair <int, int>
#define sz(a) int(a.size())
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
ll bigmod(ll a,ll e) {if(e==0)return 1;ll x=bigmod(a*a%mod,e>>1);return e&1?x*a%mod:x;}
int P[N];
int n, ans;
int arr[N][N];
int pat[N][N];
vector <int> E;
int vis[N], vis2[N];
int ata(int x)
{
if(x == P[x]) return x;
return P[x] = ata(P[x]);
}
void uni(int a, int b)
{
a = ata(a);
b = ata(b);
if(a == b) return;
P[b] = a;
arr[a][b] = arr[b][a] = 1;
}
void dfs(int nd)
{
E.pb(nd);
vis[nd] = 1;
for(int i = 0; i < n; i++) if(i != nd) {
if(pat[nd][i] == 1) vis2[i] = (vis2[i] == 1 ? 2 : vis2[i]);
if(pat[nd][i] == 0) vis2[i] = 0;
}
for(int i = 0; i < n; i++)
if(pat[nd][i] == 2 && !vis[i]) {
if(vis2[i] != 1) {
if(vis2[i] == 2) continue;
ans = 1;
return;
}
dfs(i);
return;
}
}
void upd(int nd)
{
vis[nd] = 1;
for(int i = 0; i < n; i++) {
if(ata(i) == ata(nd)) continue;
if(pat[nd][i] == 1) {
if(vis[i] == 1) {
ans = 1;
return;
}
uni(nd, i);
upd(i);
}
}
}
int construct(vector<vector<int>> p) {
n = p.size();
for(int i = 0; i < n; i++) P[i] = i;
for(int i = 0; i < n; i++)
for(int h = 0; h < n; h++) {
pat[i][h] = p[i][h];
if(p[i][h] == 3) return 0;
}
for(int i = 0; i < n; i++) {
if(vis[i]) continue;
E.clear();
memset(vis2, 0, sizeof(vis2));
for(int h = 0; h < n; h++) {
if(i == h) continue;
if(p[i][h] == 1) vis2[h] = 2;
if(p[i][h] == 2) vis2[h] = 1;
}
dfs(i);
if(E.size() == 2) return 0;
int last = -1;
for(auto h: E) {
if(last != -1) arr[last][h] = arr[h][last] = 1;
upd(h);
last = h;
}
if(E.size() == 1) continue;
arr[E[0]][last] = arr[last][E[0]] = 1;
}
if(ans == 1) return 0;
for(int i = 0; i < n; i++)
for(int h = 0; h < n; h++)
if(!p[i][h] && ata(i) == ata(h)) return 0;
vector <vector <int>> ret;
ret.resize(n);
for(int i = 0; i < n; i++)
for(int h = 0; h < n; h++)
ret[i].pb(arr[i][h]);
build(ret);
return 1;
}
Compilation message
supertrees.cpp:23: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
23 | #pragma GCC optimization ("O3")
|
supertrees.cpp:24: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
24 | #pragma GCC optimization ("unroll-loops")
|
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
2816 KB |
Output is correct |
7 |
Correct |
255 ms |
30072 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
2816 KB |
Output is correct |
7 |
Correct |
255 ms |
30072 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
512 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
11 ms |
2048 KB |
Output is correct |
13 |
Correct |
253 ms |
26196 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
2272 KB |
Output is correct |
17 |
Correct |
115 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
69 ms |
9592 KB |
Output is correct |
21 |
Correct |
255 ms |
30072 KB |
Output is correct |
22 |
Correct |
255 ms |
29560 KB |
Output is correct |
23 |
Correct |
273 ms |
30176 KB |
Output is correct |
24 |
Correct |
252 ms |
26336 KB |
Output is correct |
25 |
Correct |
109 ms |
16096 KB |
Output is correct |
26 |
Correct |
108 ms |
15608 KB |
Output is correct |
27 |
Correct |
270 ms |
30072 KB |
Output is correct |
28 |
Correct |
268 ms |
26360 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
512 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
11 ms |
2048 KB |
Output is correct |
9 |
Correct |
282 ms |
26204 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
15 ms |
2816 KB |
Output is correct |
13 |
Correct |
254 ms |
30200 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
1408 KB |
Output is correct |
17 |
Correct |
108 ms |
12152 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
384 KB |
Output is correct |
21 |
Correct |
63 ms |
9720 KB |
Output is correct |
22 |
Correct |
249 ms |
30072 KB |
Output is correct |
23 |
Correct |
247 ms |
30072 KB |
Output is correct |
24 |
Correct |
273 ms |
30072 KB |
Output is correct |
25 |
Correct |
96 ms |
12412 KB |
Output is correct |
26 |
Correct |
104 ms |
16120 KB |
Output is correct |
27 |
Correct |
252 ms |
30072 KB |
Output is correct |
28 |
Correct |
267 ms |
30328 KB |
Output is correct |
29 |
Correct |
100 ms |
12408 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
288 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
66 ms |
9592 KB |
Output is correct |
5 |
Correct |
272 ms |
30072 KB |
Output is correct |
6 |
Correct |
254 ms |
29536 KB |
Output is correct |
7 |
Correct |
273 ms |
30172 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
68 ms |
9720 KB |
Output is correct |
10 |
Correct |
256 ms |
30072 KB |
Output is correct |
11 |
Correct |
247 ms |
30072 KB |
Output is correct |
12 |
Correct |
272 ms |
30072 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
512 KB |
Output is correct |
16 |
Correct |
64 ms |
9720 KB |
Output is correct |
17 |
Correct |
248 ms |
30200 KB |
Output is correct |
18 |
Correct |
260 ms |
29816 KB |
Output is correct |
19 |
Correct |
252 ms |
29688 KB |
Output is correct |
20 |
Correct |
246 ms |
26364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
2816 KB |
Output is correct |
7 |
Correct |
255 ms |
30072 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
512 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
11 ms |
2048 KB |
Output is correct |
13 |
Correct |
253 ms |
26196 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
2272 KB |
Output is correct |
17 |
Correct |
115 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
69 ms |
9592 KB |
Output is correct |
21 |
Correct |
255 ms |
30072 KB |
Output is correct |
22 |
Correct |
255 ms |
29560 KB |
Output is correct |
23 |
Correct |
273 ms |
30176 KB |
Output is correct |
24 |
Correct |
252 ms |
26336 KB |
Output is correct |
25 |
Correct |
109 ms |
16096 KB |
Output is correct |
26 |
Correct |
108 ms |
15608 KB |
Output is correct |
27 |
Correct |
270 ms |
30072 KB |
Output is correct |
28 |
Correct |
268 ms |
26360 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
0 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
512 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
11 ms |
2048 KB |
Output is correct |
37 |
Correct |
282 ms |
26204 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
15 ms |
2816 KB |
Output is correct |
41 |
Correct |
254 ms |
30200 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
5 ms |
1408 KB |
Output is correct |
45 |
Correct |
108 ms |
12152 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
63 ms |
9720 KB |
Output is correct |
50 |
Correct |
249 ms |
30072 KB |
Output is correct |
51 |
Correct |
247 ms |
30072 KB |
Output is correct |
52 |
Correct |
273 ms |
30072 KB |
Output is correct |
53 |
Correct |
96 ms |
12412 KB |
Output is correct |
54 |
Correct |
104 ms |
16120 KB |
Output is correct |
55 |
Correct |
252 ms |
30072 KB |
Output is correct |
56 |
Correct |
267 ms |
30328 KB |
Output is correct |
57 |
Correct |
100 ms |
12408 KB |
Output is correct |
58 |
Correct |
1 ms |
384 KB |
Output is correct |
59 |
Correct |
1 ms |
384 KB |
Output is correct |
60 |
Correct |
6 ms |
2304 KB |
Output is correct |
61 |
Correct |
108 ms |
12152 KB |
Output is correct |
62 |
Correct |
1 ms |
384 KB |
Output is correct |
63 |
Correct |
1 ms |
384 KB |
Output is correct |
64 |
Correct |
1 ms |
384 KB |
Output is correct |
65 |
Correct |
80 ms |
9720 KB |
Output is correct |
66 |
Correct |
108 ms |
16124 KB |
Output is correct |
67 |
Correct |
112 ms |
15864 KB |
Output is correct |
68 |
Correct |
103 ms |
15768 KB |
Output is correct |
69 |
Correct |
94 ms |
12280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
2816 KB |
Output is correct |
7 |
Correct |
255 ms |
30072 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
512 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
11 ms |
2048 KB |
Output is correct |
13 |
Correct |
253 ms |
26196 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
2272 KB |
Output is correct |
17 |
Correct |
115 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
69 ms |
9592 KB |
Output is correct |
21 |
Correct |
255 ms |
30072 KB |
Output is correct |
22 |
Correct |
255 ms |
29560 KB |
Output is correct |
23 |
Correct |
273 ms |
30176 KB |
Output is correct |
24 |
Correct |
252 ms |
26336 KB |
Output is correct |
25 |
Correct |
109 ms |
16096 KB |
Output is correct |
26 |
Correct |
108 ms |
15608 KB |
Output is correct |
27 |
Correct |
270 ms |
30072 KB |
Output is correct |
28 |
Correct |
268 ms |
26360 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
0 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
512 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
11 ms |
2048 KB |
Output is correct |
37 |
Correct |
282 ms |
26204 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
15 ms |
2816 KB |
Output is correct |
41 |
Correct |
254 ms |
30200 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
5 ms |
1408 KB |
Output is correct |
45 |
Correct |
108 ms |
12152 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
63 ms |
9720 KB |
Output is correct |
50 |
Correct |
249 ms |
30072 KB |
Output is correct |
51 |
Correct |
247 ms |
30072 KB |
Output is correct |
52 |
Correct |
273 ms |
30072 KB |
Output is correct |
53 |
Correct |
96 ms |
12412 KB |
Output is correct |
54 |
Correct |
104 ms |
16120 KB |
Output is correct |
55 |
Correct |
252 ms |
30072 KB |
Output is correct |
56 |
Correct |
267 ms |
30328 KB |
Output is correct |
57 |
Correct |
100 ms |
12408 KB |
Output is correct |
58 |
Correct |
1 ms |
384 KB |
Output is correct |
59 |
Correct |
1 ms |
288 KB |
Output is correct |
60 |
Correct |
1 ms |
384 KB |
Output is correct |
61 |
Correct |
66 ms |
9592 KB |
Output is correct |
62 |
Correct |
272 ms |
30072 KB |
Output is correct |
63 |
Correct |
254 ms |
29536 KB |
Output is correct |
64 |
Correct |
273 ms |
30172 KB |
Output is correct |
65 |
Correct |
1 ms |
384 KB |
Output is correct |
66 |
Correct |
68 ms |
9720 KB |
Output is correct |
67 |
Correct |
256 ms |
30072 KB |
Output is correct |
68 |
Correct |
247 ms |
30072 KB |
Output is correct |
69 |
Correct |
272 ms |
30072 KB |
Output is correct |
70 |
Correct |
1 ms |
384 KB |
Output is correct |
71 |
Correct |
1 ms |
384 KB |
Output is correct |
72 |
Correct |
1 ms |
512 KB |
Output is correct |
73 |
Correct |
64 ms |
9720 KB |
Output is correct |
74 |
Correct |
248 ms |
30200 KB |
Output is correct |
75 |
Correct |
260 ms |
29816 KB |
Output is correct |
76 |
Correct |
252 ms |
29688 KB |
Output is correct |
77 |
Correct |
246 ms |
26364 KB |
Output is correct |
78 |
Correct |
1 ms |
384 KB |
Output is correct |
79 |
Correct |
1 ms |
384 KB |
Output is correct |
80 |
Correct |
6 ms |
2304 KB |
Output is correct |
81 |
Correct |
108 ms |
12152 KB |
Output is correct |
82 |
Correct |
1 ms |
384 KB |
Output is correct |
83 |
Correct |
1 ms |
384 KB |
Output is correct |
84 |
Correct |
1 ms |
384 KB |
Output is correct |
85 |
Correct |
80 ms |
9720 KB |
Output is correct |
86 |
Correct |
108 ms |
16124 KB |
Output is correct |
87 |
Correct |
112 ms |
15864 KB |
Output is correct |
88 |
Correct |
103 ms |
15768 KB |
Output is correct |
89 |
Correct |
94 ms |
12280 KB |
Output is correct |
90 |
Correct |
1 ms |
512 KB |
Output is correct |
91 |
Correct |
1 ms |
256 KB |
Output is correct |
92 |
Correct |
5 ms |
640 KB |
Output is correct |
93 |
Correct |
107 ms |
8184 KB |
Output is correct |
94 |
Correct |
1 ms |
256 KB |
Output is correct |
95 |
Correct |
1 ms |
384 KB |
Output is correct |
96 |
Correct |
1 ms |
384 KB |
Output is correct |
97 |
Correct |
23 ms |
2432 KB |
Output is correct |
98 |
Correct |
97 ms |
8440 KB |
Output is correct |
99 |
Correct |
93 ms |
8824 KB |
Output is correct |
100 |
Correct |
95 ms |
8568 KB |
Output is correct |
101 |
Correct |
97 ms |
9720 KB |
Output is correct |
102 |
Correct |
105 ms |
8288 KB |
Output is correct |
103 |
Correct |
101 ms |
8184 KB |
Output is correct |
104 |
Correct |
104 ms |
8184 KB |
Output is correct |
105 |
Correct |
102 ms |
8184 KB |
Output is correct |