제출 #346916

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
346916		Dilshod_Imomov	슈퍼트리 잇기 (IOI20_supertrees)	C++17	11 / 100	250 ms	28140 KiB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 1e3 + 7;

vector < int > adj[N], visited(N);

void dfs( int v ) {
    visited[v] = 1;
    for ( auto u: adj[v] ) {
        if ( !visited[u] ) {
            dfs(u);
        }
    }
}

int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	for ( int i = 0; i < n; i++ ) {
        for ( int j = 0; j < n; j++ ) {
            if ( i == j ) {
                continue;
            }
            if ( p[i][j] == 1 ) {
                adj[i].push_back(j);

            }
        }
	}
	vector < int > comp, used(n + 7);
	for ( int i = 0; i < n; i++ ) {
        if ( visited[i] ) {
            continue;
        }
        dfs(i);
        comp.push_back(i);
	}
    for ( int i = 0; i < n; i++ ) {
        if ( used[i] ) {
            continue;
        }
        for ( auto j: adj[i] ) {
            answer[i][j] = 1;
            used[j] = 1;
            answer[j][i] = 1;
        }
    }
    int sz = comp.size();
    for ( int i = 0; i < sz - 1; i++ ) {
        answer[comp[i]][comp[i + 1]] = 1;
        answer[ comp[i + 1] ][ comp[i] ] = 1;
    }
    if ( sz > 1 ) {
        answer[ comp[sz - 1] ][ comp[0] ] = 1;
        answer[ comp[ 0 ] ][ comp[sz - 1] ] = 1;
    }
	build(answer);
	return 1;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 10
• Subtask 3: 0 / 19
• Subtask 4: 0 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4