제출 #705312

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
705312	2023-03-03 22:47:53	rainboy	Rope (JOI17_rope)	C11	100 / 100	1118 ms	72776 KiB

rope

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 1000000
#define M N
#define N_  (1 << 20) /* N_ = pow2(ceil(log2(M))) */
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
int *ei[M], eo[M];
void append(int a, int i) {
  int o = eo[a]++;
  if (o >= 2 && (o & o - 1) == 0)
    ei[a] = (int *) realloc(ei[a], o * 2 * sizeof *ei[a]);
  ei[a][o] = i;
}
int st[N_ * 2], n_;
void pul(int i) {
  st[i] = max(st[i << 1 | 0], st[i << 1 | 1]);
}
void update(int i, int x) {
  st[i += n_] += x;
  while (i > 1)
 
 
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컴파일 시 표준 에러 (stderr) 메시지

rope.c: In function 'append':
rope.c:17:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   17 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
rope.c: In function 'main':
rope.c:38:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |  scanf("%d%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~
rope.c:46:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |   scanf("%d", &aa[i]), aa[i]--;
      |   ^~~~~~~~~~~~~~~~~~~

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• Subtask 2: 30 / 30
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• Subtask 5: 20 / 20