Submission #627036

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
627036	2022-08-12 05:18:42	lunchbox	Prisoner Challenge (IOI22_prison)	C++17	100 / 100	12 ms	1420 KiB

prison

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#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef vector<vi> vvi;
int B[] = {3, 3, 3, 3, 3, 3, 2};
int P[] = {1, 4, 7, 10, 13, 16, 19, 21};
int S[] = {5102, 1700, 566, 188, 62, 20, 6, 2};
vvi f;
int slv(int b, int i, int l, int r) {
  f[i][l] = (b & 1) ? -1 : -2;
  f[i][r] = (b & 1) ? -2 : -1;
  if (b == 7)
    return i;
  for (int j = 0; j < B[b]; j++) {
    int l_ = l + 1 + j * S[b + 1];
    int r_ = l + (j + 1) * S[b + 1];
    int i_ = P[b] + j;
    slv(b + 1, i_, l_, r_);
    for (int v = l_; v <= r_; v++)
      f[i][v] = i_;
    for (int v = l; v <= l_ - 1; v++)
      f[i_][v] = (b & 1) ? -2 : -1;
    for (int v = r_ + 1; v <= r; v++)
      f[i_][v] = (b & 1) ? -1 : -2;
  }
  return i;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 90 / 90