CODE FESTIVAL 2016 Final

Submission #1152181

Source codeソースコード

#include <bits/stdc++.h>
using namespace std;

const int N = 1E5 + 10;

vector<int> language[N];

int n, m;
int fa[N], sz[N];

void init() {
  for (int i = 1; i <= n; i++) {
    fa[i] = i;
    sz[i] = 1;
  }
}

int find(int u) {
  if(fa[u] != u) return fa[u] = find(fa[u]);
  else return fa[u];
}

void uni(int a, int b) {
  a = find(a), b = find(b);
  if(a != b) {
    fa[a] = b;
    sz[b] += sz[a];
    sz[a] = sz[b];
  }
}

int main() {
  scanf("%d%d", &n, &m);
  for (int i = 1; i <= n; i++) {
    int k, v;
    scanf("%d", &k);
    for (int j = 1; j <= k; j++) {
      scanf("%d", &v);
      language[v].push_back(i);
    }
  }
  init();
  for(int i = 1; i <= m; i++) {
    if(language[i].size() <= 1) continue;
    for(int j = 0; j < language[i].size() - 1; j++) {
      uni(language[i][j + 1], language[i][j]);
    }
  }
  for(int i = 1; i <= n; i++) {
    if(sz[find(i)] != n) {
      printf("NO\n");
      return 0;
    }
  }
  printf("YES\n");
  return 0;
}

Submission

Task問題 C - Interpretation
User nameユーザ名 cornw
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 400
Source lengthソースコード長 1025 Byte
File nameファイル名
Exec time実行時間 34 ms
Memory usageメモリ使用量 4736 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:33:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &m);
^
./Main.cpp:36:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &k);
^
./Main.cpp:38:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &v);
^

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt
dataset1 200 / 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 200 / 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 3 ms 2560 KB
01-02.txt AC 3 ms 2560 KB
01-03.txt AC 3 ms 2560 KB
01-04.txt AC 3 ms 2560 KB
01-05.txt AC 3 ms 2560 KB
01-06.txt AC 3 ms 2560 KB
01-07.txt AC 3 ms 2560 KB
01-08.txt AC 3 ms 2560 KB
01-09.txt AC 3 ms 2560 KB
01-10.txt AC 3 ms 2560 KB
02-01.txt AC 29 ms 4608 KB
02-02.txt AC 22 ms 3968 KB
02-03.txt AC 24 ms 4096 KB
02-04.txt AC 33 ms 4480 KB
02-05.txt AC 26 ms 3968 KB
02-06.txt AC 34 ms 4352 KB
02-07.txt AC 27 ms 4096 KB
02-08.txt AC 19 ms 3940 KB
02-09.txt AC 22 ms 3832 KB
02-10.txt AC 20 ms 4732 KB
02-11.txt AC 20 ms 4732 KB
02-12.txt AC 23 ms 4736 KB
02-13.txt AC 22 ms 4608 KB
sample-01.txt AC 3 ms 2560 KB
sample-02.txt AC 2 ms 2560 KB