제출 #922627

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
922627	2024-02-05 20:35:14	rainboy	Airplanes (LMIO17_lektuvai)	C11	0 / 100	2 ms	8540 KiB

lektuvai

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#include <stdio.h>
#include <stdlib.h>
#define N 200000
#define N_  (1 << 18) /* N_ = pow2(ceil(log2(N + 1))) */
long long max(long long a, long long b) { return a > b ? a : b; }
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], qq[N], ta[N], tb[N];
int dfs1(int i, int d) {
  int o, s, k_, j_;
  dd[i] = d;
  s = 1, k_ = 0, j_ = -1;
  for (o = eo[i]; o--; ) {
    int j = ej[i][o], k = dfs1(j, d + 1);
    s += k;
    if (k_ < k)
 
 
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컴파일 시 표준 에러 (stderr) 메시지

lektuvai.c: In function 'append':
lektuvai.c:14:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   14 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
lektuvai.c: In function 'main':
lektuvai.c:137:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  137 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
lektuvai.c:139:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  139 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
lektuvai.c:143:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  143 |   scanf("%d", &pp[i]), pp[i]--;
      |   ^~~~~~~~~~~~~~~~~~~
lektuvai.c:149:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  149 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
lektuvai.c:153:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  153 |   scanf("%s", s);
      |   ^~~~~~~~~~~~~~
lektuvai.c:155:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  155 |    scanf("%d", &i), i--;
      |    ^~~~~~~~~~~~~~~
lektuvai.c:160:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  160 |    scanf("%d%lld", &i, &x), i--, x += query(ta[i]);
      |    ^~~~~~~~~~~~~~~~~~~~~~~

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• Subtask 2: 0 / 6
• Subtask 3: 0 / 40
• Subtask 4: 0 / 49