oj.uz

답안 #866231

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
866231 2023-10-25T15:45:31 Z lolismek 슈퍼트리 잇기 (IOI20_supertrees) C++14
46 / 100
 175 ms 22264 KB 
#include "supertrees.h"
#include <vector>

using namespace std;

const int NMAX = 1000;

vector <int> adj[NMAX + 1];

int par[NMAX + 1];

int Find(int x){
    if(x == par[x]){
        return x;
    }
    return par[x] = Find(par[x]);
}

void Unite(int i, int j){
    i = Find(i);
    j = Find(j);
    par[i] = j;
}

int rep[NMAX + 1];

vector <int> gr[NMAX + 1];

int construct(vector<vector<int>> p) {
	int n = p.size();

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

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(i == j && p[i][j] != 1){
                return 0;
            }
            if(i != j && p[i][j] == 1 && Find(i) != Find(j)){
                adj[i].push_back(j);
                adj[j].push_back(i);
                Unite(i, j);
            }else if(p[i][j] == 3){
                return 0;
            }
        }
    }

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

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(rep[i] == rep[j] && p[i][j] != 1){
                return 0;
            }
        }
    }

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(p[i][j] == 2){
                if(rep[i] == rep[j]){
                    return 0;
                }
                Unite(rep[i], rep[j]);
            }
        }
    }

    for(int i = 0; i < n; i++){
        gr[Find(i)].push_back(i);
    }

    for(int i = 0; i < n; i++){
        if((int)gr[i].size() >= 3){
            for(int j = 1; j < (int)gr[i].size(); j++){
                adj[gr[i][j]].push_back(gr[i][j - 1]);
                adj[gr[i][j - 1]].push_back(gr[i][j]);
            }
            adj[gr[i].back()].push_back(gr[i][0]);
            adj[gr[i][0]].push_back(gr[i].back());
        }else{
            if((int)gr[i].size() == 2){
                return 0;
            }
        }
    }

    vector <vector <int>> ans(n, vector <int> (n, 0));
    for(int i = 0; i < n; i++){
        for(int x : adj[i]){
            ans[i][x] = 1;
        }
    }

    build(ans);
	return 1;
}

/*
5
1 1 1 2 2
1 1 1 2 2
1 1 1 2 2
2 2 2 1 2
2 2 2 2 1
*/

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22100 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 149 ms 22096 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 604 KB Output is correct
17 Correct 79 ms 8240 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -

Subtask #3
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 600 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1304 KB Output is correct
9 Correct 147 ms 22060 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1304 KB Output is correct
13 Correct 160 ms 22064 KB Output is correct
14 Incorrect 0 ms 344 KB Answer gives possible 1 while actual possible 0
15 Halted 0 ms 0 KB -

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 600 KB Output is correct
4 Correct 38 ms 5832 KB Output is correct
5 Correct 151 ms 22264 KB Output is correct
6 Correct 150 ms 22140 KB Output is correct
7 Correct 175 ms 22252 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 37 ms 5728 KB Output is correct
10 Correct 146 ms 22224 KB Output is correct
11 Correct 146 ms 22088 KB Output is correct
12 Correct 173 ms 22212 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 37 ms 5712 KB Output is correct
17 Correct 148 ms 22212 KB Output is correct
18 Correct 148 ms 22100 KB Output is correct
19 Correct 153 ms 22080 KB Output is correct
20 Correct 142 ms 22100 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 149 ms 22096 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 604 KB Output is correct
17 Correct 79 ms 8240 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 149 ms 22096 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 604 KB Output is correct
17 Correct 79 ms 8240 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -