Submission #340210

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
340210	2020-12-27 09:48:40	_ani	K blocks (IZhO14_blocks)	C++17	53 / 100	1080 ms	9964 KiB

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#define BUGO(x) cerr << #x << " = " << (x) << '\n';
#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
using namespace std;
using ll = long long;
const int N = 100'002;
const int K = 20;
int lg[N];
ll dp[N][102], a[N];
ll mx[N][K];
void Build(int n)
{
  lg[1] = 0;
  for (int i = 2; i <= n; i++)
    lg[i] = lg[i / 2] + 1;
  int k = lg[n];
  for (int i = 0; i < n; i++)
    mx[i][0] = a[i + 1];
  for (int j = 1; j <= k; j++)
    for (int i = 0; i + (1 << j) - 1 <= n; i++)
      mx[i][j] = max(mx[i][j - 1], mx[i + (1 << (j - 1))][j - 1]);
}
ll Mx(int l, int r)
{
  l--; r--;
  int j = lg[r - l + 1];
  return max(mx[l][j], mx[r - (1 << j) + 1][j]);
}
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 0 / 47