CODE FESTIVAL 2016 Final

Submission #5879730

Source codeソースコード

#include <bits/stdc++.h>
#include <assert.h>
using namespace std;
using i64 = long long;

struct UnionFind
{
  vector<i64> data;
  UnionFind(i64 size)
  {
    data.resize(size, -1);
  }
  i64 unite(i64 x, i64 y)
  {
    x = root(x);
    y = root(y);
    if (x != y)
    {
      if (data[y] < data[x])
        swap(x, y);
      data[x] += data[y];
      data[y] = x;
    }
    return 0;
  }
  bool same(i64 x, i64 y)
  {
    return root(x) == root(y);
  }
  i64 root(i64 x)
  {
    return data[x] < 0 ? x : data[x] = root(data[x]);
  }
  i64 size(i64 x)
  {
    return -data[root(x)];
  }
};

int main()
{
  i64 n, m;
  cin >> n >> m;
  UnionFind uf(n + m);
  for (i64 i = 0; i < n; i++)
  {
    i64 k;
    cin >> k;
    for (i64 j = 0; j < k; j++)
    {
      i64 l;
      cin >> l;
      uf.unite(i, n + l - 1);
    }
  }
  cout << (uf.size(0) + 1 == n + m ? "YES" : "NO") << endl;
  return 0;
}

Submission

Task問題 C - Interpretation
User nameユーザ名 ecto0310
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 WA
Score得点 0
Source lengthソースコード長 955 Byte
File nameファイル名
Exec time実行時間 ms
Memory usageメモリ使用量 -

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt
dataset1 0 / 200 sample-01.txt,sample-02.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt
dataset2 0 / 200 sample-01.txt,sample-02.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt,02-01.txt,02-02.txt,02-03.txt,02-04.txt,02-05.txt,02-06.txt,02-07.txt,02-08.txt,02-09.txt,02-10.txt,02-11.txt,02-12.txt,02-13.txt,sample-01.txt,sample-02.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt WA
01-02.txt WA
01-03.txt AC 2 ms 256 KB
01-04.txt WA
01-05.txt AC 2 ms 256 KB
01-06.txt WA
01-07.txt WA
01-08.txt AC 1 ms 256 KB
01-09.txt WA
01-10.txt WA
02-01.txt WA
02-02.txt AC 38 ms 1024 KB
02-03.txt AC 31 ms 768 KB
02-04.txt WA
02-05.txt WA
02-06.txt AC 40 ms 1408 KB
02-07.txt AC 40 ms 1024 KB
02-08.txt AC 32 ms 1024 KB
02-09.txt WA
02-10.txt WA
02-11.txt AC 37 ms 1024 KB
02-12.txt WA
02-13.txt AC 35 ms 1024 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt AC 1 ms 256 KB