Submission #979223

#	Time	Username	Problem	Language	Result	Execution time	Memory
979223		rahidilbayramli	Cave (IOI13_cave)	C++17	0 / 100	42 ms	348 KiB

cave

#include "cave.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(v) v.begin(), v.end()
#define pb push_back
#define f first
#define s second
using namespace std;
using namespace __gnu_pbds;
typedef tree<pll, null_type, less<pll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
void exploreCave(int N) {
    int n = N, i, j;
    int isfound[n], f[n], sw[n], fa[n];
    for(i = 0; i < n; i++)
    {
        f[i] = 0;
        isfound[i] = 0;
        sw[i] = 0;
    }
    for(i = 0; i < n; i++)
    {
        int ask = tryCombination(f);
        for(j = 0; j < n; j++)
            fa[j] = f[j];
        int l = 0, r = n - 1;
        while(l != r)
        {
            int mid = (l + r) / 2;
            for(j = l; j <= mid; j++)
            {
                if(!isfound[j])
                    fa[j] = 1 - fa[j];
            }
            int res = tryCombination(fa);
            int p1 = (ask == i), p2 = (res == i);
            if(p1 != p2)
                r = (l + r) / 2;
            else
                l = (l + r) / 2 + 1;
        }
        isfound[l] = 1;
        sw[l] = i;
        if(ask == i)
            fa[l] = 1 - fa[l];
        for(j = 0; j < n; j++)
            f[j] = fa[j];
    }
    answer(fa, sw);
}

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