Submission #300541

#	Time	Username	Problem	Language	Result	Execution time	Memory
300541		Dilshod_Imomov	Connecting Supertrees (IOI20_supertrees)	C++17	0 / 100	1160 ms	1696652 KiB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 1e3 + 7;
int nn, comp, used[N];
set < int > cmp[N];

void rec( int v, vector<std::vector<int>> p ) {
    //cout << v << endl;
    cmp[ comp ].insert(v);
    used[v] = 1;
    for ( int i = 0; i < nn; i++ ) {
        if ( p[v][i] && !used[i] ) {
            rec( i, p );
        }
    }
}

int construct(std::vector<std::vector<int>> p) {
	nn = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < nn; i++) {
		std::vector<int> row;
		row.resize(nn);
		answer.push_back(row);
	}
	for ( int i = 0; i < nn; i++ ) {
        if ( used[i] ) {
            continue;
        }
        comp++;
        rec( i, p );
	}
	for ( int i = 1; i <= comp; i++ ) {
        vector < int > vc;
        for ( auto j: cmp[i] ) {
            vc.push_back( j );
        }
        for ( int i = 0; i < (int)vc.size() - 1; i++ ) {
            answer[ vc[i] ][ vc[i + 1] ] = 1;
            answer[ vc[i + 1] ][ vc[i] ] = 1;
        }
        for ( auto x1: vc ) {
            for ( auto x2: vc ) {
                if ( !p[x1][x2] ) {
                    return 0;
                }
            }
        }
	}
	build(answer);
	return 1;
}

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