답안 #788253

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
788253	2023-07-20T03:45:38 Z	mindiyak	슈퍼트리 잇기 (IOI20_supertrees)	C++14	21 / 100	163 ms	22148 KB

supertrees

//In heads make different sets of heads



#include "supertrees.h"
#include <vector>
#include <set>
#include <iostream>

using namespace std;

vector<int> parent(1003);
vector<int> header_parent(1003);
vector<set<int>> header_counter;

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

int find_head_parent(int n){
	if(header_parent[n] == n){
		return n;
	}return find_head_parent(header_parent[n]);
}

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

	for (int i = 0; i < n; i++) {
		parent[i] = i;
		header_parent[i] = i;
		header_counter.push_back(a);
	}

	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);
					header_parent[higher] = parent[higher];
				}
			}
		}
	}

	// cout <<"process 2" << endl;

	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(i==j)
				continue;
			if(p[i][j] == 2){
				int lower = min(i,j);
				int higher = max(i,j);
				if(find_head_parent(lower) != find_head_parent(higher)){
					ans[i][j] = 1;
					ans[j][i] = 1;
					header_parent[higher] = find_head_parent(lower);
					header_counter[header_parent[higher]].insert(higher);
				}
				// cout << i << " " << j << " " << header_parent[higher] << " " << header_counter[header_parent[higher]].size() << endl;
			}
		}
	}

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

	// cout << endl;
	// for (int i = 0; i < n; i++) {
	// 	cout << i << " " << parent[i] << " " << header_parent[i] << " " << header_counter[i].size() << endl;
	// }
	// cout << 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);
			int i_head_header = find_head_parent(i_head);
			int j_head_header = find_head_parent(j_head);
			if(i==j)
				continue;
			if(p[i][j] == 0){
				if(i_head == j_head){
					return 0;
				}
				if(i_head_header == j_head_header){
					return 0;
				}
			}else if(p[i][j] == 1){
				if(i_head != j_head){
					return 0;
				}
			}else if(p[i][j] == 2){
				// cout << i << " " << j << " " << i_head_header << " " << j_head_header << endl;
				if((header_counter[i_head_header].size() < 2)){
					return 0;
				}
				if(i_head == j_head){
					return 0;
				}
				if(i_head_header != j_head_header){
					return 0;
				}
			}
		}
	}


	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	7 ms	1108 KB	Output is correct
7	Correct	151 ms	22032 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	7 ms	1108 KB	Output is correct
7	Correct	151 ms	22032 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	6 ms	1208 KB	Output is correct
13	Correct	154 ms	22092 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	72 ms	12172 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	288 KB	Output is correct
20	Correct	39 ms	5700 KB	Output is correct
21	Correct	157 ms	22148 KB	Output is correct
22	Correct	156 ms	22064 KB	Output is correct
23	Correct	157 ms	22028 KB	Output is correct
24	Correct	163 ms	22108 KB	Output is correct
25	Correct	66 ms	12172 KB	Output is correct
26	Correct	63 ms	12180 KB	Output is correct
27	Correct	161 ms	22092 KB	Output is correct
28	Correct	151 ms	22032 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	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Incorrect	0 ms	212 KB	Too few ways to get from 0 to 1, should be 2 found 1
6	Halted	0 ms	0 KB	-

Subtask #4
0 / 35.0

#	결과	메모리	Grader output
1	Correct	212 KB	Output is correct
2	Incorrect	212 KB	Too few ways to get from 0 to 1, should be 2 found 1
3	Halted	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	7 ms	1108 KB	Output is correct
7	Correct	151 ms	22032 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	6 ms	1208 KB	Output is correct
13	Correct	154 ms	22092 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	72 ms	12172 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	288 KB	Output is correct
20	Correct	39 ms	5700 KB	Output is correct
21	Correct	157 ms	22148 KB	Output is correct
22	Correct	156 ms	22064 KB	Output is correct
23	Correct	157 ms	22028 KB	Output is correct
24	Correct	163 ms	22108 KB	Output is correct
25	Correct	66 ms	12172 KB	Output is correct
26	Correct	63 ms	12180 KB	Output is correct
27	Correct	161 ms	22092 KB	Output is correct
28	Correct	151 ms	22032 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	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Incorrect	0 ms	212 KB	Too few ways to get from 0 to 1, should be 2 found 1
34	Halted	0 ms	0 KB	-

Subtask #6
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	7 ms	1108 KB	Output is correct
7	Correct	151 ms	22032 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	6 ms	1208 KB	Output is correct
13	Correct	154 ms	22092 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	72 ms	12172 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	288 KB	Output is correct
20	Correct	39 ms	5700 KB	Output is correct
21	Correct	157 ms	22148 KB	Output is correct
22	Correct	156 ms	22064 KB	Output is correct
23	Correct	157 ms	22028 KB	Output is correct
24	Correct	163 ms	22108 KB	Output is correct
25	Correct	66 ms	12172 KB	Output is correct
26	Correct	63 ms	12180 KB	Output is correct
27	Correct	161 ms	22092 KB	Output is correct
28	Correct	151 ms	22032 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	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Incorrect	0 ms	212 KB	Too few ways to get from 0 to 1, should be 2 found 1
34	Halted	0 ms	0 KB	-

답안 #788253

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 19.0

Subtask #4 0 / 35.0

Subtask #5 0 / 21.0

Subtask #6 0 / 4.0

Subtask #1
11.0 / 11.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 19.0

Subtask #4
0 / 35.0

Subtask #5
0 / 21.0

Subtask #6
0 / 4.0