oj.uz

Submission #701974

# Submission time Handle Problem Language Result Execution time Memory
701974 2023-02-22T12:08:55 Z PenguinsAreCute Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 197 ms 24064 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
int par[1005];
int find_set(int x) {
    if(par[x] == x) return x;
    return par[x] = find_set(par[x]);
}
bool same_set(int x, int y) {
    return find_set(x) == find_set(y);
}
void merge_set(int x, int y) {
    par[find_set(x)] = find_set(y);
}
int construct(vector<vector<int>> p) {
    for(int i = 0; i < 1005; i++) par[i] = i;
	int n = p.size();
	vector<vector<int>> answer;
	for(int i = 0; i < n; i++) {
		vector<int> row;
		for(int j = 0; j < n; j++) row.push_back(0);
		answer.push_back(row);
	}
	for (int i = 0; i < n; i++) {
		for(int j = 0; j < n; j++) {
			if(p[i][j] == 3) return 0;
            if(p[i][j] != 0 && !same_set(i, j)) merge_set(i, j);
        }
	}
    for(int i = 0; i < n; i++) for(int j = 0; j < n; j++) if(i != j && same_set(i, j) != (bool)p[i][j]) return 0;
    for(int i = 0; i < n; i++) {
		vector<int> v, c;
		for(int j = 0; j < n; j++) if(find_set(j) == i) v.push_back(j);
		if(v.size() == 2 && p[v[0]][v[1]] == 2) return 0;
		if(v.size() != 0) {
			int s = v.size();
			for(int j = 0; j < s; j++) {
				bool inC = true;
				for(int k = 0; k < j; k++) if(p[v[j]][v[k]] == 1) {
					answer[v[j]][v[k]] = 1;
					answer[v[k]][v[j]] = 1;
					inC = false; break;
				}
				if(inC) c.push_back(v[j]);
			}
			for(int i = 0; i < c.size() - 1; i++) {
				answer[c[i]][c[i + 1]] = 1;
				answer[c[i + 1]][c[i]] = 1;
			}
			if(c.size() > 1) {
				answer[c[0]][c[c.size() - 1]] = 1;
				answer[c[c.size() - 1]][c[0]] = 1;
			}
		}
    }
	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:46:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |    for(int i = 0; i < c.size() - 1; i++) {
      |                   ~~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 304 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 194 ms 23940 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 304 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 194 ms 23940 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 8 ms 1212 KB Output is correct
13 Correct 183 ms 23940 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 89 ms 14028 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 45 ms 6196 KB Output is correct
21 Correct 176 ms 23940 KB Output is correct
22 Correct 179 ms 23988 KB Output is correct
23 Correct 197 ms 23932 KB Output is correct
24 Correct 172 ms 23932 KB Output is correct
25 Correct 80 ms 14028 KB Output is correct
26 Correct 69 ms 14088 KB Output is correct
27 Correct 190 ms 23932 KB Output is correct
28 Correct 172 ms 24012 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 8 ms 1208 KB Output is correct
9 Correct 170 ms 23940 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 177 ms 23976 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 82 ms 14088 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 304 KB Output is correct
21 Correct 45 ms 6184 KB Output is correct
22 Correct 182 ms 23932 KB Output is correct
23 Correct 176 ms 23948 KB Output is correct
24 Correct 186 ms 23904 KB Output is correct
25 Correct 78 ms 14092 KB Output is correct
26 Correct 77 ms 14064 KB Output is correct
27 Correct 190 ms 23936 KB Output is correct
28 Correct 189 ms 23992 KB Output is correct
29 Correct 78 ms 14076 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 46 ms 6216 KB Output is correct
5 Correct 179 ms 23980 KB Output is correct
6 Correct 175 ms 23920 KB Output is correct
7 Correct 197 ms 23936 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 45 ms 6220 KB Output is correct
10 Correct 182 ms 23928 KB Output is correct
11 Correct 176 ms 23964 KB Output is correct
12 Correct 194 ms 24064 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 45 ms 6264 KB Output is correct
17 Correct 182 ms 23928 KB Output is correct
18 Correct 180 ms 23920 KB Output is correct
19 Correct 188 ms 23932 KB Output is correct
20 Correct 181 ms 24016 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 304 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 194 ms 23940 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 8 ms 1212 KB Output is correct
13 Correct 183 ms 23940 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 89 ms 14028 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 45 ms 6196 KB Output is correct
21 Correct 176 ms 23940 KB Output is correct
22 Correct 179 ms 23988 KB Output is correct
23 Correct 197 ms 23932 KB Output is correct
24 Correct 172 ms 23932 KB Output is correct
25 Correct 80 ms 14028 KB Output is correct
26 Correct 69 ms 14088 KB Output is correct
27 Correct 190 ms 23932 KB Output is correct
28 Correct 172 ms 24012 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 304 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 0 ms 308 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1208 KB Output is correct
37 Correct 170 ms 23940 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1236 KB Output is correct
41 Correct 177 ms 23976 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 82 ms 14088 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 304 KB Output is correct
49 Correct 45 ms 6184 KB Output is correct
50 Correct 182 ms 23932 KB Output is correct
51 Correct 176 ms 23948 KB Output is correct
52 Correct 186 ms 23904 KB Output is correct
53 Correct 78 ms 14092 KB Output is correct
54 Correct 77 ms 14064 KB Output is correct
55 Correct 190 ms 23936 KB Output is correct
56 Correct 189 ms 23992 KB Output is correct
57 Correct 78 ms 14076 KB Output is correct
58 Correct 0 ms 304 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 6 ms 852 KB Output is correct
61 Correct 83 ms 14076 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 45 ms 6272 KB Output is correct
66 Correct 71 ms 14072 KB Output is correct
67 Correct 72 ms 14028 KB Output is correct
68 Correct 68 ms 14076 KB Output is correct
69 Correct 79 ms 14088 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 304 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 194 ms 23940 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 8 ms 1212 KB Output is correct
13 Correct 183 ms 23940 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 89 ms 14028 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 45 ms 6196 KB Output is correct
21 Correct 176 ms 23940 KB Output is correct
22 Correct 179 ms 23988 KB Output is correct
23 Correct 197 ms 23932 KB Output is correct
24 Correct 172 ms 23932 KB Output is correct
25 Correct 80 ms 14028 KB Output is correct
26 Correct 69 ms 14088 KB Output is correct
27 Correct 190 ms 23932 KB Output is correct
28 Correct 172 ms 24012 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 304 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 0 ms 308 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1208 KB Output is correct
37 Correct 170 ms 23940 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1236 KB Output is correct
41 Correct 177 ms 23976 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 82 ms 14088 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 304 KB Output is correct
49 Correct 45 ms 6184 KB Output is correct
50 Correct 182 ms 23932 KB Output is correct
51 Correct 176 ms 23948 KB Output is correct
52 Correct 186 ms 23904 KB Output is correct
53 Correct 78 ms 14092 KB Output is correct
54 Correct 77 ms 14064 KB Output is correct
55 Correct 190 ms 23936 KB Output is correct
56 Correct 189 ms 23992 KB Output is correct
57 Correct 78 ms 14076 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 46 ms 6216 KB Output is correct
62 Correct 179 ms 23980 KB Output is correct
63 Correct 175 ms 23920 KB Output is correct
64 Correct 197 ms 23936 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 45 ms 6220 KB Output is correct
67 Correct 182 ms 23928 KB Output is correct
68 Correct 176 ms 23964 KB Output is correct
69 Correct 194 ms 24064 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 1 ms 308 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 45 ms 6264 KB Output is correct
74 Correct 182 ms 23928 KB Output is correct
75 Correct 180 ms 23920 KB Output is correct
76 Correct 188 ms 23932 KB Output is correct
77 Correct 181 ms 24016 KB Output is correct
78 Correct 0 ms 304 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 6 ms 852 KB Output is correct
81 Correct 83 ms 14076 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 45 ms 6272 KB Output is correct
86 Correct 71 ms 14072 KB Output is correct
87 Correct 72 ms 14028 KB Output is correct
88 Correct 68 ms 14076 KB Output is correct
89 Correct 79 ms 14088 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 73 ms 14004 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 1 ms 304 KB Output is correct
97 Correct 18 ms 3796 KB Output is correct
98 Correct 71 ms 14088 KB Output is correct
99 Correct 69 ms 14076 KB Output is correct
100 Correct 67 ms 14072 KB Output is correct
101 Correct 66 ms 14072 KB Output is correct
102 Correct 66 ms 14084 KB Output is correct
103 Correct 66 ms 14000 KB Output is correct
104 Correct 68 ms 14000 KB Output is correct
105 Correct 81 ms 14072 KB Output is correct