Submission #1201969

#	Time	Username	Problem	Language	Result	Execution time	Memory
1201969		bynix	Prisoner Challenge (IOI22_prison)	C++20	Compilation error	0 ms	0 KiB

prison

#include "bits/stdc++.h"
#include "prison.h"
using namespace std;

vector<vector<int>> devise_strategy(int N){
  vector<vector<int>> strategy;
  for (int i = 0; i <= 24; i++) {
    vector<int> J(N + 1);
    if (i == 0){
      J[0] = 1;
      for (int j = 1; j <= N; j++) J[j] = encode(j, 8);
    } else {
      auto [p, pos] = decode(i);
      J[0] = pos & 1;
      for (int j = 1; j <= N; j++){
        int c = b3(j, pos);
        if (c < p) J[j] = -1 - pos % 2;
        else if (c > p) J[j] = pos % 2 - 2;
        else J[j] = encode(j, pos - 1);
      }
    }
    strategy.push_back(J);
  }
  return strategy;
}

Compilation message (stderr)

prison.cpp: In function 'std::vector<std::vector<int> > devise_strategy(int)':
prison.cpp:11:43: error: 'encode' was not declared in this scope
   11 |       for (int j = 1; j <= N; j++) J[j] = encode(j, 8);
      |                                           ^~~~~~
prison.cpp:13:23: error: 'decode' was not declared in this scope
   13 |       auto [p, pos] = decode(i);
      |                       ^~~~~~
prison.cpp:16:17: error: 'b3' was not declared in this scope
   16 |         int c = b3(j, pos);
      |                 ^~
prison.cpp:19:21: error: 'encode' was not declared in this scope
   19 |         else J[j] = encode(j, pos - 1);
      |                     ^~~~~~