Submission #705246

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
705246	2023-03-03 17:03:15	rainboy	Prize (CEOI22_prize)	C11	100 / 100	1961 ms	237084 KiB

Main

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 1000000
#define Q 100000
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
int t;
int *ej[2][N], eo[2][N], dd[2][N], pp[2][N], qq[2][N], sz[2][N], ta[2][N], tb[2][N], rr[2];
void append(int i, int j) {
  int o = eo[t][i]++;
  if (o >= 2 && (o & o - 1) == 0)
    ej[t][i] = (int *) realloc(ej[t][i], o * 2 * sizeof *ej[t][i]);
  ej[t][i][o] = j;
}
int dfs1(int p, int i, int d) {
  int o, s, k_, j_;
  dd[t][i] = d, pp[t][i] = p;
  s = 1, k_ = 0, j_ = -1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Main.c: In function 'append':
Main.c:21:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   21 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
Main.c: In function 'main':
Main.c:122:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  122 |  scanf("%d%d%*d%d", &n, &k, &q);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:127:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  127 |    scanf("%d", &p), p--;
      |    ^~~~~~~~~~~~~~~
Main.c:154:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  154 |    scanf("%d%d", &di, &dj);
      |    ^~~~~~~~~~~~~~~~~~~~~~~
Main.c:160:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  160 |   scanf("%d%d", &i, &j), i--, j--;
      |   ^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 25 / 25
• Subtask 3: 19 / 19
• Subtask 4: 22 / 22
• Subtask 5: 24 / 24