Submission #1264832

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264832		avohado	Cave (IOI13_cave)	C++20	Compilation error	0 ms	0 KiB

cave

#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define maxn 200005
#define f first
#define s second
#define ll long long
#define pb(x) push_back(x)
void exploreCave(int n){
    int f=0, k; bool b=0;
    int used[n]{}, a[n]{}, kr[n];
    if(tryCombination(a)==f){
        b=1;
    }
    while(f<n){
        int l=0, r=n;
        while(l<r-1){
            int m=(l+r)/2;
            for(int i=l; i<m; i++){
                if(!used[i]){
                    a[i]=(a[i]^1);
                }
            }
            k=tryCombination(a);
            if((k==f)==b){
                l=m;
            }else{
                r=m; b^=1;
            }
        }
        used[l]=1;
        kr[l]=f;
        f++;
        if(b==1){
            a[l]^=1;
            b=(tryCombination(a)==f);
        }else if(f!=n){
            b=(k==f);
        }
    }
    answer(a, kr);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:12:8: error: 'tryCombination' was not declared in this scope
   12 |     if(tryCombination(a)==f){
      |        ^~~~~~~~~~~~~~
cave.cpp:24:15: error: 'tryCombination' was not declared in this scope
   24 |             k=tryCombination(a);
      |               ^~~~~~~~~~~~~~
cave.cpp:36:16: error: 'tryCombination' was not declared in this scope
   36 |             b=(tryCombination(a)==f);
      |                ^~~~~~~~~~~~~~
cave.cpp:41:5: error: 'answer' was not declared in this scope
   41 |     answer(a, kr);
      |     ^~~~~~