Submission #905150

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
905150	2024-01-12 16:24:58	rainboy	Brackets (CPSPC17_brackets)	C11	100 / 100	34 ms	1120 KiB

Main

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 200
#define INF 0x3f3f3f3f3f3f3f3fLL
void append(int **ej, int **ec, int *eo, int i, int j, int c) {
  int o = eo[i]++;
  if (o >= 2 && (o & o - 1) == 0) {
    ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
    ec[i] = (int *) realloc(ec[i], o * 2 * sizeof *ec[i]);
  }
  ej[i][o] = j, ec[i][o] = c;
}
long long dd[N * N]; int iq[N * N + 1], pq[N * N], cnt;
int lt(int i, int j) { return dd[i] < dd[j]; }
int p2(int p) {
  return (p *= 2) > cnt ? 0 : (p < cnt && lt(iq[p + 1], iq[p]) ? p + 1 : p);
}
void pq_up(int i) {
  int p, q, j;
  for (p = pq[i]; (q = p / 2) && lt(i, j = iq[q]); p = q)
    iq[pq[j] = p] = j;
 
 
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Compilation message (stderr)

Main.c: In function 'append':
Main.c:11:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   11 |  if (o >= 2 && (o & o - 1) == 0) {
      |                     ~~^~~
Main.c: In function 'main':
Main.c:60:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |  scanf("%d%d%d%d", &n, &m, &s, &t), s--, t--;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:71:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |   scanf("%d%d%s", &i, &j, s), i--, j--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 16 / 16
• Subtask 3: 16 / 16
• Subtask 4: 16 / 16
• Subtask 5: 10 / 10
• Subtask 6: 26 / 26