Submission #958310

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
958310	2024-04-05 11:19:50	JwFXoiz	Xylophone (JOI18_xylophone)	C++14	47 / 100	125 ms	175604 KiB

xylophone

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#include <bits/stdc++.h>
#include "xylophone.h"
using namespace std;
int a[5001], qq[5001][5001];
int C = 0;
int ask(int l, int r)
{
  assert(++C <= 10000);
  if (qq[l][r] != -1) return qq[l][r];
  return qq[l][r] = query(l, r);
}
void calc(int l, int r, int f, int up)
{
  if (r - l <= 1) return;
  if (!f)
  {
    int x = ask(l + 1, r);
    int lx = l + 1, rx = r - 1;
    while (lx < rx)
    {
      int mid = (lx + rx + 1) >> 1;
      int y = ask(mid, r);
      if (x == y) lx = mid;
      else rx = mid - 1;
    }
    if (up) a[lx] = a[r] + x;
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 36 / 36
• Subtask 3: 0 / 53