Submission #731035

#	Time	Username	Problem	Language	Result	Execution time	Memory
731035		aykhn	Rack (eJOI19_rack)	C++14	40 / 100	8 ms	4436 KiB

rack

#include <bits/stdc++.h>

/*
    author: aykhn
    4/24/2023
*/

using namespace std;

typedef long long ll;

#define OPT ios_base::sync_with_stdio(0); \
            cin.tie(0); \
            cout.tie(0)
#define pii pair<int,int>
#define pll pair<ll,ll>
#define all(v) v.begin(), v.end()
#define mpr make_pair
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define inf 0x3F3F3F3F
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount
#define print(v) for(int i = 0; i < v.size(); i++) cout << v[i] << " "; cout<<endl;

const ll mod = 1000000007;

vector<int> v(1048577, 0);
int n, k, val;
int ans;

void f(int i, int from)
{
    if (val == k) ans = i;
    v[i] = val++;
    int pow = (1 << n);

    while (pow > from)
    {
        f(i + pow, pow);
        pow >>= 1;
    }
}

int main()
{
    OPT;
    cin >> n >> k;
    n--;

    val = 1;

    f(1, 0);

    cout << ans << endl;

}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 0 / 60