Submission #636581

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
636581	2022-08-29 15:37:32	rainboy	Jail (JOI22_jail)	C11	54 / 100	5093 ms	17616 KiB

jail

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 120000
#define M 100
int *ej[N], eo[N];
void append(int i, int j) {
  int o = eo[i]++;
  if (o >= 2 && (o & o - 1) == 0)
    ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
  ej[i][o] = j;
}
int dd[N], pp[N];
void dfs1(int p, int i, int d) {
  int o;
  dd[i] = d, pp[i] = p;
  for (o = eo[i]; o--; ) {
    int j = ej[i][o];
    if (j != p)
      dfs1(i, j, d + 1);
  }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

jail.c: In function 'append':
jail.c:13:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   13 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
jail.c: In function 'main':
jail.c:48:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |  scanf("%d", &t);
      |  ^~~~~~~~~~~~~~~
jail.c:54:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |   scanf("%d", &n);
      |   ^~~~~~~~~~~~~~~
jail.c:59:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |    scanf("%d%d", &i, &j), i--, j--;
      |    ^~~~~~~~~~~~~~~~~~~~~
jail.c:66:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |    scanf("%d", &m);
      |    ^~~~~~~~~~~~~~~
jail.c:69:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |     scanf("%d%d", &i, &j), i--, j--;
      |     ^~~~~~~~~~~~~~~~~~~~~
jail.c:83:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |    scanf("%d", &m);
      |    ^~~~~~~~~~~~~~~
jail.c:85:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |     scanf("%d%d", &ii[h], &jj[h]), ii[h]--, jj[h]--;
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 16 / 16
• Subtask 4: 28 / 28
• Subtask 5: 0 / 12
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23