oj.uz

Submission #422005

# Submission time Handle Problem Language Result Execution time Memory
422005 2021-06-09T14:40:58 Z OttoTheDino Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 282 ms 22368 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
 
#define rep(i,s,e)                  for (int i = s; i <= e; ++i)
typedef vector<int> vi;
 
int construct (vector<vi> p) {
    int n = p.size();
 
    int sup[n], tree[n], spec[n];
    memset(sup,-1,4*n), memset(tree,-1,4*n);
 
    rep (i,0,n-1) {
        if (sup[i]==-1) {
            bool two = 0;
            rep (j,0,n-1) {
                if (p[i][j]==3) return 0;
                if (p[i][j]==1 || p[i][j]==2) {
                    if (sup[i]==-1) sup[i] = sup[j] = j;
                    else sup[j] = sup[i];
                    if (p[i][j]==1) {
                        if (tree[i]==-1) tree[i] = tree[j] = j;
                        else tree[j] = tree[i];
                    }
                    else two = 1;
                }
                else if (i==j) return 0;
            }
            spec[sup[i]] = !two;
        }
        else if (tree[i]==-1) {
            rep (j,0,n-1) {
                if (p[i][j]==3) return 0;
                if (p[i][j]==1 || p[i][j]==2) {
                    if (p[sup[i]][j] != 1 && p[sup[i]][j] != 2) return 0;
                    if (p[i][j]==1) {
                        if (tree[i]==-1) tree[i] = tree[j] = j;
                        else tree[j] = tree[i];
                    }
                }
                else if (p[sup[i]][j]) return 0;
            }
        }
        else rep (j,0,n-1) if (p[tree[i]][j]!=p[i][j]) return 0;
    }
 
    vector<vi> b(n,vi(n,0));
    rep (i,0,n-1) {
        if (i==sup[i]) {
            int last = i, cnt = 0;
            rep (j,0,n-1) {
                if (sup[j]==i && j==tree[j]) cnt++;
                if (i==j || sup[j]!=i) continue;
                if (j==tree[j]) {
                    if (spec[i]) continue;
                    b[j][last] = b[last][j] = 1;
                    last = j;
                }
                else b[j][tree[j]] = b[tree[j]][j] = 1;
            }
            if (last!=i && !spec[i]) b[last][i] = b[i][last] = 1;
            if (!spec[i] && cnt==2) return 0;
        }
    }
 
    build(b);        
    return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 292 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1204 KB Output is correct
7 Correct 230 ms 22368 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 292 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1204 KB Output is correct
7 Correct 230 ms 22368 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1216 KB Output is correct
13 Correct 241 ms 22052 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 624 KB Output is correct
17 Correct 99 ms 8256 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 292 KB Output is correct
20 Correct 60 ms 5800 KB Output is correct
21 Correct 234 ms 22112 KB Output is correct
22 Correct 226 ms 22084 KB Output is correct
23 Correct 243 ms 22068 KB Output is correct
24 Correct 233 ms 22092 KB Output is correct
25 Correct 108 ms 8296 KB Output is correct
26 Correct 97 ms 8224 KB Output is correct
27 Correct 239 ms 22152 KB Output is correct
28 Correct 282 ms 22136 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 10 ms 1224 KB Output is correct
9 Correct 228 ms 22088 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1200 KB Output is correct
13 Correct 226 ms 22180 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 628 KB Output is correct
17 Correct 100 ms 8260 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 56 ms 5828 KB Output is correct
22 Correct 232 ms 22236 KB Output is correct
23 Correct 263 ms 22148 KB Output is correct
24 Correct 245 ms 22136 KB Output is correct
25 Correct 95 ms 12184 KB Output is correct
26 Correct 103 ms 8188 KB Output is correct
27 Correct 260 ms 22096 KB Output is correct
28 Correct 235 ms 22264 KB Output is correct
29 Correct 96 ms 12164 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 296 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 58 ms 5828 KB Output is correct
5 Correct 227 ms 22200 KB Output is correct
6 Correct 221 ms 22084 KB Output is correct
7 Correct 233 ms 22076 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 57 ms 5888 KB Output is correct
10 Correct 239 ms 22344 KB Output is correct
11 Correct 234 ms 22212 KB Output is correct
12 Correct 235 ms 22292 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 58 ms 5904 KB Output is correct
17 Correct 265 ms 22284 KB Output is correct
18 Correct 247 ms 22204 KB Output is correct
19 Correct 224 ms 22296 KB Output is correct
20 Correct 230 ms 22196 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 292 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1204 KB Output is correct
7 Correct 230 ms 22368 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1216 KB Output is correct
13 Correct 241 ms 22052 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 624 KB Output is correct
17 Correct 99 ms 8256 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 292 KB Output is correct
20 Correct 60 ms 5800 KB Output is correct
21 Correct 234 ms 22112 KB Output is correct
22 Correct 226 ms 22084 KB Output is correct
23 Correct 243 ms 22068 KB Output is correct
24 Correct 233 ms 22092 KB Output is correct
25 Correct 108 ms 8296 KB Output is correct
26 Correct 97 ms 8224 KB Output is correct
27 Correct 239 ms 22152 KB Output is correct
28 Correct 282 ms 22136 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 296 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1224 KB Output is correct
37 Correct 228 ms 22088 KB Output is correct
38 Correct 1 ms 292 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1200 KB Output is correct
41 Correct 226 ms 22180 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 628 KB Output is correct
45 Correct 100 ms 8260 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 56 ms 5828 KB Output is correct
50 Correct 232 ms 22236 KB Output is correct
51 Correct 263 ms 22148 KB Output is correct
52 Correct 245 ms 22136 KB Output is correct
53 Correct 95 ms 12184 KB Output is correct
54 Correct 103 ms 8188 KB Output is correct
55 Correct 260 ms 22096 KB Output is correct
56 Correct 235 ms 22264 KB Output is correct
57 Correct 96 ms 12164 KB Output is correct
58 Correct 1 ms 288 KB Output is correct
59 Correct 1 ms 296 KB Output is correct
60 Correct 5 ms 588 KB Output is correct
61 Correct 119 ms 8316 KB Output is correct
62 Correct 1 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 79 ms 5920 KB Output is correct
66 Correct 95 ms 8316 KB Output is correct
67 Correct 106 ms 8316 KB Output is correct
68 Correct 95 ms 8436 KB Output is correct
69 Correct 101 ms 12368 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 292 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1204 KB Output is correct
7 Correct 230 ms 22368 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1216 KB Output is correct
13 Correct 241 ms 22052 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 624 KB Output is correct
17 Correct 99 ms 8256 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 292 KB Output is correct
20 Correct 60 ms 5800 KB Output is correct
21 Correct 234 ms 22112 KB Output is correct
22 Correct 226 ms 22084 KB Output is correct
23 Correct 243 ms 22068 KB Output is correct
24 Correct 233 ms 22092 KB Output is correct
25 Correct 108 ms 8296 KB Output is correct
26 Correct 97 ms 8224 KB Output is correct
27 Correct 239 ms 22152 KB Output is correct
28 Correct 282 ms 22136 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 296 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1224 KB Output is correct
37 Correct 228 ms 22088 KB Output is correct
38 Correct 1 ms 292 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1200 KB Output is correct
41 Correct 226 ms 22180 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 628 KB Output is correct
45 Correct 100 ms 8260 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 56 ms 5828 KB Output is correct
50 Correct 232 ms 22236 KB Output is correct
51 Correct 263 ms 22148 KB Output is correct
52 Correct 245 ms 22136 KB Output is correct
53 Correct 95 ms 12184 KB Output is correct
54 Correct 103 ms 8188 KB Output is correct
55 Correct 260 ms 22096 KB Output is correct
56 Correct 235 ms 22264 KB Output is correct
57 Correct 96 ms 12164 KB Output is correct
58 Correct 1 ms 296 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 58 ms 5828 KB Output is correct
62 Correct 227 ms 22200 KB Output is correct
63 Correct 221 ms 22084 KB Output is correct
64 Correct 233 ms 22076 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 57 ms 5888 KB Output is correct
67 Correct 239 ms 22344 KB Output is correct
68 Correct 234 ms 22212 KB Output is correct
69 Correct 235 ms 22292 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 204 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 58 ms 5904 KB Output is correct
74 Correct 265 ms 22284 KB Output is correct
75 Correct 247 ms 22204 KB Output is correct
76 Correct 224 ms 22296 KB Output is correct
77 Correct 230 ms 22196 KB Output is correct
78 Correct 1 ms 288 KB Output is correct
79 Correct 1 ms 296 KB Output is correct
80 Correct 5 ms 588 KB Output is correct
81 Correct 119 ms 8316 KB Output is correct
82 Correct 1 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 79 ms 5920 KB Output is correct
86 Correct 95 ms 8316 KB Output is correct
87 Correct 106 ms 8316 KB Output is correct
88 Correct 95 ms 8436 KB Output is correct
89 Correct 101 ms 12368 KB Output is correct
90 Correct 1 ms 292 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 5 ms 588 KB Output is correct
93 Correct 98 ms 8392 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
95 Correct 1 ms 288 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 23 ms 2340 KB Output is correct
98 Correct 113 ms 8312 KB Output is correct
99 Correct 116 ms 8352 KB Output is correct
100 Correct 93 ms 8348 KB Output is correct
101 Correct 95 ms 8324 KB Output is correct
102 Correct 94 ms 8332 KB Output is correct
103 Correct 94 ms 8324 KB Output is correct
104 Correct 93 ms 8336 KB Output is correct
105 Correct 101 ms 8352 KB Output is correct