Submission #733282

#	Time	Username	Problem	Language	Result	Execution time	Memory
733282		ismayil	Connecting Supertrees (IOI20_supertrees)	C++17	11 / 100	174 ms	23928 KiB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
const int MAX = 1e3 + 3;
int par[MAX];
int find(int u){
	if(par[u] < 0) return u;
	return par[u] = find(par[u]);
}
bool unite(int u, int v){
	u = find(u), v = find(v);
	if(u == v) return false;
	if(par[u] > par[v]) swap(u, v);
	par[u] += par[v];
	par[v] = u;
	return true;
}
int construct(vector<vector<int>> p) 
{
	memset(par, -1, sizeof(par));
	int n = p.size();
	vector<vector<int>> answer(n, vector<int>(n, 0));
	for (int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(!p[i][j]) continue;
			if(unite(i, j)){
				answer[i][j] = answer[j][i] = 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