Submission #785027

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
785027	2023-07-17 00:21:56	rainboy	Game (eJOI20_game)	C11	100 / 100	1 ms	724 KiB

game

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#include <stdio.h>
#include <string.h>
#define N 20
#define M 20
#define N_  ((N + 1) * M + N * (M + 1))
#define INF 0x3f3f3f3f
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
int ds[N_], sz[N_]; char cycle[N_];
int find(int i) {
  return ds[i] < 0 ? i : (ds[i] = find(ds[i]));
}
void join(int i, int j) {
  i = find(i);
  j = find(j);
  if (i == j) {
    cycle[i] = 1;
    return;
  }
  if (ds[i] > ds[j])
    ds[i] = j, sz[j] += sz[i], cycle[j] |= cycle[i];
  else {
    if (ds[i] == ds[j])
      ds[i]--;
    ds[j] = i, sz[i] += sz[j], cycle[i] |= cycle[j];
 
 
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Compilation message (stderr)

game.c: In function 'main':
game.c:39:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |  scanf("%d%d", &n, &m), n_ = (n + 1) * m + n * (m + 1);
      |  ^~~~~~~~~~~~~~~~~~~~~
game.c:41:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |   scanf("%s", aa[i]);
      |   ^~~~~~~~~~~~~~~~~~
game.c:43:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |   scanf("%s", bb[i]);
      |   ^~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20