제출 #446368

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
446368	2021-07-21 17:20:02	rainboy	Sky Walking (IOI19_walk)	C++14	100 / 100	668 ms	67372 KiB

walk

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/* https://ioi2019.az/source/Tasks/Day2/Walk/review.pdf */
#include "walk.h"
#include <stdlib.h>
#include <string.h>
using namespace std;
typedef vector<int> vi;
const int N = 100000, M = 100000, N_ = 1 << 17, N1 = N * 13, M1 = N1 * 2; /* N_ = pow2(ceil(log2(N))) */
const long long INF = 0x3f3f3f3f3f3f3f3f;
int max(int a, int b) { return a > b ? a : b; }
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
int *aa;
void sort(int *ii, int l, int r) {
  while (l < r) {
    int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;
    while (j < k)
      if (aa[ii[j]] == aa[i_])
        j++;
      else if (aa[ii[j]] < aa[i_]) {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

walk.cpp: In function 'void append(int**, int*, int, int)':
walk.cpp:50:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   50 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 15 / 15
• Subtask 4: 18 / 18
• Subtask 5: 43 / 43