oj.uz

Submission #256539

# Submission time Handle Problem Language Result Execution time Memory
256539 2020-08-02T20:08:37 Z Harry464 Cave (IOI13_cave) C++14
0 / 100
 1118 ms 536 KB 
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include "cave.h"

using namespace std;

void exploreCave(int n)
{
    vector <int> sw(n,0);
    vector <int> odg(n,-1);
    for (int j = 0; j < n; j++){
        vector <int> t = sw;
        vector <int> free;
        for (int i = 0; i < n; i++)
            if (odg[i] == -1)
             free.push_back(i), t[i] = 1;
        int ask = tryCombination(&t[0]);
        int trig;
        if (ask == j)
            trig = 0;
        else
            trig = 1;
        int l = 0, r = free.size() - 1;
        while (l < r){
            int mid = (l+r)/2;
            for (int i = l; i <= mid; i++)
                t[free[i]] = trig;
            for (int i = 0; i < l; i++)
                t[free[i]] = (trig+1)%2;
            for (int i = mid + 1; i < free.size(); i++)
                t[free[i]] = (trig+1)%2;
            ask = tryCombination(&t[0]);
            if (ask == j)
                 l = mid + 1;
            else
                 r = mid;
        }
        l--;
        sw[l] = trig;
        odg[l] = j;
    }
    answer(&sw[0],&odg[0]);
}

Compilation message

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:32:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i = mid + 1; i < free.size(); i++)
                                   ~~^~~~~~~~~~~~~

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 702 ms 504 KB Answer is wrong
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1118 ms 536 KB Answer is wrong
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 256 KB Answer is wrong
2 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 256 KB Answer is wrong
2 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 702 ms 504 KB Answer is wrong
2 Halted 0 ms 0 KB -