oj.uz

답안 #788232

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
788232 2023-07-20T02:57:54 Z mindiyak 슈퍼트리 잇기 (IOI20_supertrees) C++14
21 / 100
 233 ms 22048 KB 
#include "supertrees.h"
#include <vector>
#include <set>
#include <iostream>

using namespace std;

vector<int> parent(1003);

int find_head(int n){
	if(parent[n] == n){
		return n;
	}return find_head(parent[n]);
}

int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
	set<int> heads;
	vector<vector<int>>ans(n,vector<int>(n,0));

	for (int i = 0; i < n; i++) {
		parent[i] = i;
	}

	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(i==j)
				continue;
			if(p[i][j] == 3){
				return 0;
			}else if(p[i][j] == 1){
				int lower = min(i,j);
				int higher = max(i,j);
				if(find_head(lower) != find_head(higher)){
					ans[i][j] = 1;
					ans[j][i] = 1;
					parent[higher] = find_head(lower);
				}
			}else if(p[i][j] == 2){
				if(n < 3){
					return 0;
				}
				heads.insert(find_head(i));
				heads.insert(find_head(j));
			}
		}
	}

	// cout << "table travers" << endl;

	vector<int> header;
	for (int i : heads) {
		header.push_back(i);
	}


	int t = header.size();

	// cout << t << " " << (0<(t-1)) << endl;

	for (int i = 0; i < (t-1); i++) {
		// cout << "for" << endl;
		ans[header[i]][header[i+1]] = 1;
		ans[header[i+1]][header[i]] = 1;
	}
	if(t > 2){
		// cout << "comare" << endl;
		ans[header[0]][header[t-1]] = 1;
		ans[header[t-1]][header[0]] = 1;
	}

	// cout << "headers connected" << endl;

	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			int i_head = find_head(i);
			int j_head = find_head(j);
			if(i==j)
				continue;
			if(p[i][j] == 0){
				if(i_head == j_head){
					return 0;
				}
				if(heads.count(i_head) == 1 and heads.count(j_head) == 1){
					return 0;
				}
			}else if(p[i][j] == 1){
				if(i_head != j_head){
					return 0;
				}
			}else if(p[i][j] == 2){
				if(i_head == j_head){
					return 0;
				}
				if(heads.count(i_head) == 0 or heads.count(j_head) == 0){
					return 0;
				}
			}
		}
	}


	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1168 KB Output is correct
7 Correct 149 ms 22008 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1168 KB Output is correct
7 Correct 149 ms 22008 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 157 ms 21964 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 69 ms 12048 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5704 KB Output is correct
21 Correct 159 ms 21936 KB Output is correct
22 Correct 165 ms 22020 KB Output is correct
23 Correct 163 ms 22020 KB Output is correct
24 Correct 158 ms 22048 KB Output is correct
25 Correct 65 ms 12048 KB Output is correct
26 Correct 90 ms 12036 KB Output is correct
27 Correct 163 ms 21928 KB Output is correct
28 Correct 151 ms 22036 KB Output is correct

Subtask #3
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 6 ms 1164 KB Output is correct
9 Correct 149 ms 22020 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 9 ms 1172 KB Output is correct
13 Correct 233 ms 22036 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 98 ms 14072 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 308 KB Output is correct
21 Incorrect 16 ms 3788 KB Answer gives possible 0 while actual possible 1
22 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 38 ms 5684 KB Output is correct
5 Correct 152 ms 22044 KB Output is correct
6 Correct 172 ms 21948 KB Output is correct
7 Correct 157 ms 21984 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Incorrect 15 ms 3212 KB Answer gives possible 0 while actual possible 1
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1168 KB Output is correct
7 Correct 149 ms 22008 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 157 ms 21964 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 69 ms 12048 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5704 KB Output is correct
21 Correct 159 ms 21936 KB Output is correct
22 Correct 165 ms 22020 KB Output is correct
23 Correct 163 ms 22020 KB Output is correct
24 Correct 158 ms 22048 KB Output is correct
25 Correct 65 ms 12048 KB Output is correct
26 Correct 90 ms 12036 KB Output is correct
27 Correct 163 ms 21928 KB Output is correct
28 Correct 151 ms 22036 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1164 KB Output is correct
37 Correct 149 ms 22020 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 9 ms 1172 KB Output is correct
41 Correct 233 ms 22036 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 300 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 98 ms 14072 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 308 KB Output is correct
49 Incorrect 16 ms 3788 KB Answer gives possible 0 while actual possible 1
50 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1168 KB Output is correct
7 Correct 149 ms 22008 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 157 ms 21964 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 69 ms 12048 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5704 KB Output is correct
21 Correct 159 ms 21936 KB Output is correct
22 Correct 165 ms 22020 KB Output is correct
23 Correct 163 ms 22020 KB Output is correct
24 Correct 158 ms 22048 KB Output is correct
25 Correct 65 ms 12048 KB Output is correct
26 Correct 90 ms 12036 KB Output is correct
27 Correct 163 ms 21928 KB Output is correct
28 Correct 151 ms 22036 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1164 KB Output is correct
37 Correct 149 ms 22020 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 9 ms 1172 KB Output is correct
41 Correct 233 ms 22036 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 300 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 98 ms 14072 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 308 KB Output is correct
49 Incorrect 16 ms 3788 KB Answer gives possible 0 while actual possible 1
50 Halted 0 ms 0 KB -