제출 #365014

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
365014	2021-02-10 18:16:28	Farrius	슈퍼트리 잇기 (IOI20_supertrees)	C++14	21 / 100	274 ms	24172 KiB

supertrees

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#include "supertrees.h"
#include <vector>
using namespace std;
struct DSU {
  vector<int> e;
  void init (int n) {e = vector<int>(n, -1);}
  int get (int x) {return e[x] < 0 ? x : e[x] = get(e[x]);}
  bool sameSet (int x, int y) {return get(x) == get(y);}
  bool unite (int x, int y) {
    x = get(x), y = get(y);
    if (x == y) return false;
    if (e[x] > e[y]) swap(x, y);
    e[x] += e[y];
    e[y] = x;
    return true;
  }
};
int construct(vector<vector<int>> p) {
  //take input
  int n = p.size();
  vector<vector<int>> sol(n, vector<int>(n));
  DSU dsu;
  dsu.init(n);
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (p[i][j] >= 1) {
        dsu.unite(i, j);
 
 
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