Submission #488411

#TimeUsernameProblemLanguageResultExecution timeMemory
488411SlavicG동굴 (IOI13_cave)C++17
Compilation error
0 ms0 KiB

#include "bits/stdc++.h"
#include"cave.h"
using namespace std;
 
#define ll long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()


/*
int tryCombination(vector<int> s){return 0;}
void answer(vector<int> s, vector<int> k){return;}
*/
void exploreCave(int n){
    int door[n], color[n];

    for(int i = 0;i < n; ++i){
        color[i] = 0, door[i] = -1;
    }

    for(int pizza = 0;pizza < n; ++pizza){
        for(int i = 0;i < n; ++i)
            if(door[i] != -1)color[i] = 0;

        int f = tryCombination(color);
        int l = 0, r = n - 1, c = 0, idx = -1;

        while(l < r){
            if(f == -1 || f > pizza){
                //door opens
            }else{
                for(int i = l;i <= r; ++i){
                    if(door[i] == -1)color[i] = !color[i];
                }
            }

            int mid = l + r >> 1;

            for(int i = l;i <= mid; ++i){
                if(door[i] == -1)color[i] = !color[i];
            }

            f = tryCombination(color);

            if(f == pizza){
                //closed door
                r = mid;
                c = !color[i];
            }else{
                l = mid + 1;
                c = color[i];
            }
        }

        door[l] = pizza;
        color[l] = c;
    }

    answer(color, door);
}
/*
void solve()
{ 


}   
 
int32_t main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--)
    {
        solve();
    }
}
*/

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:43:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   43 |             int mid = l + r >> 1;
      |                       ~~^~~
cave.cpp:54:28: error: 'i' was not declared in this scope
   54 |                 c = !color[i];
      |                            ^
cave.cpp:57:27: error: 'i' was not declared in this scope
   57 |                 c = color[i];
      |                           ^
cave.cpp:32:38: warning: unused variable 'idx' [-Wunused-variable]
   32 |         int l = 0, r = n - 1, c = 0, idx = -1;
      |                                      ^~~