Submission #284635

#	Time	Username	Problem	Language	Result	Execution time	Memory
284635		triplem5ds	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

#include "cave.h"
#include "bits/stdc++.h"
using namespace std;
void exploreCave(int N) {
  n = N;
  memset(ans, -1, sizeof ans);
  for(int i = 0; i < N; i++){
    for(int j = 0; j < N; j++)if(ans[j] == -1)S[j] = 0;
    else S[j] = ans[j];
    int x = tryCombination(S);
    if(x == -1)x = N;
    bool f = (x <= i);  ///the door is closed then it should be open by the other state
    ///find which switch is it
    int lo  = 0, hi = N - 1 - i;
    while(lo < hi){
      int md = lo + (hi - lo) / 2;
      int cnt = 0;
      for(int j = 0; j < N; j++){
        if(ans[j] != -1)S[j] = ans[j];
        else {
          S[j] = (f ^ (cnt > md));
          cnt++;
        }
      }
      int x = tryCombination(S);
      if(x == -1)x = N;
      if(x > i)
        hi = md;
      else
        lo = md + 1;
    }
    int cnt = 0;
    for(int j = 0; j < n; j++){
      if(ans[j] == -1){
        if(cnt == lo){
          ans[j]=f;
          W[j] = i;
          break;
        }
        cnt++;
      }
    }
  }
  answer(ans,W);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:5:3: error: 'n' was not declared in this scope
    5 |   n = N;
      |   ^
cave.cpp:6:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
    6 |   memset(ans, -1, sizeof ans);
      |          ^~~
      |          abs
cave.cpp:8:47: error: 'S' was not declared in this scope
    8 |     for(int j = 0; j < N; j++)if(ans[j] == -1)S[j] = 0;
      |                                               ^
cave.cpp:9:10: error: 'S' was not declared in this scope
    9 |     else S[j] = ans[j];
      |          ^
cave.cpp:10:28: error: 'S' was not declared in this scope
   10 |     int x = tryCombination(S);
      |                            ^
cave.cpp:37:11: error: 'W' was not declared in this scope
   37 |           W[j] = i;
      |           ^
cave.cpp:44:14: error: 'W' was not declared in this scope
   44 |   answer(ans,W);
      |              ^