CODE FESTIVAL 2016 Final

Submission #10060738

Source codeソースコード

//In The Name Of Allah
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define sz(x) (int)(x.size())
#define double long double 
#define fi first
#define se second
#define pii pair<int, int>

vector<vector<int>> g;

const int N = 1e5 + 100;
vector<vector<int>> lang(N);
vector<bool> visited(N, false);

bool dfs(int v, int par) {
  visited[v] = true;
  bool res = true;
  for (auto &u : g[v]) {
    if (!visited[u]) {
      res &= dfs(u, v);
    }
    else if (visited[u] && u != par) {
      return false;
    }
  }
  return res;
}

signed main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);
  int n, m;
  cin >> n >> m;
  g.resize(n);
  for (int i = 0; i < n; i++) {
    int k;
    cin >> k;
    while (k--) {
      int x;
      cin >> x;
      lang[x].push_back(i);
    }
  }
  for (int i = 1; i <= m; i++) {
    if (2 < sz(lang[i])) {
      cout << "NO\n";
      return 0;
    }
    if (sz(lang[i]) == 2) {
      int u = lang[i][0], v = lang[i][1];
      g[u].push_back(v);
      g[v].push_back(u);
    }
  }
  if (!dfs(0, -1)) {
    cout << "NO\n";
    return 0;
  }
  for (int i = 0; i < n; i++) {
    if (!visited[i]) {
      cout << "NO\n";
      return 0;
    }
  }
  cout << "YES\n";
}

Submission

Task問題 C - Interpretation
User nameユーザ名 MohsenZare
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 1290 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 AC 2 ms 2560 KB
01-02.txt WA
01-03.txt AC 3 ms 2688 KB
01-04.txt WA
01-05.txt AC 3 ms 2688 KB
01-06.txt WA
01-07.txt WA
01-08.txt AC 3 ms 2688 KB
01-09.txt WA
01-10.txt WA
02-01.txt WA
02-02.txt AC 17 ms 6016 KB
02-03.txt AC 18 ms 4608 KB
02-04.txt WA
02-05.txt WA
02-06.txt AC 21 ms 5632 KB
02-07.txt WA
02-08.txt AC 15 ms 5840 KB
02-09.txt WA
02-10.txt WA
02-11.txt AC 16 ms 5884 KB
02-12.txt WA
02-13.txt AC 16 ms 5632 KB
sample-01.txt AC 2 ms 2560 KB
sample-02.txt AC 2 ms 2560 KB