Submission #545667

#	Time	Username	Problem	Language	Result	Execution time	Memory
545667		AJ00	Cave (IOI13_cave)	C++14	46 / 100	26 ms	444 KiB

cave

#include <bits/stdc++.h>
#include "cave.h"
using namespace std;
int n;
void exploreCave(int N){
    n = N;
    int S[n],D[n],temp[n];
    vector<bool> found(n,false);
    for (int i = 0; i < n; i++){
        S[i] = 0;
        D[i] = -1;
    }
    int ans = tryCombination(S),i=0,runs =0;
    while (ans!=-1){
        int prevans = ans;
        while(prevans == ans){
            //cout << ans << "\n";
            //cout << runs << " ";
            while (found[i]){
               // cout << i << " ";
                i = (i+1)%n;
            }
           // cout << "\n";
           // cout << i << " ";
            S[i] ^= 1;
            runs++;
            ans = tryCombination(S);
            i = (i+1)%n;
        }
        //cout << prevans << " " << ans << " " << ((i-1)+n)%n << "\n";
        if (ans == -1){
            break;
        }
        
        found[((i-1)+n)%n] = true;
        if (ans < prevans){
            //D[((i-1)+n)%n] = ans;
            S[((i-1)+n)%n] ^= 1;
            ans = prevans;
            //S1[i-1] = S[i-1];
        }
        //cout << "f " << ((i-1)+n)%n << " " <<  S[((i-1)+n)%n] << "\n";
    }
    
   // cout << runs << "\n";
    for (int i = 0; i < n; i++){
        temp[i] = S[i];
    }
    for (int i = 0; i < n; i++){
        temp[i] ^= 1;
        D[i] = tryCombination(temp);
        temp[i] ^= 1;
        //cout << D[i] << " ";
    }
    answer(S,D);
}

• Subtask 1: 12 / 12
• Subtask 2: 13 / 13
• Subtask 3: 21 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24