Submission #1173488

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173488		andriy57	Rack (eJOI19_rack)	C++20	0 / 100	0 ms	324 KiB

rack

#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
using namespace std;
#define forin for(int i = 1; i <= n; i++)
#define stforin for(int i = 0; i < n; i++)
#define forim for(int i = 1; i <= m; i++)
#define forjn for(int j = 1; j <= n; j++)
#define forch(j, n) for(int i = j; i <= n; i++)
#define forch2(i, j, n) for(int i = j; i <= n; i++)
#define forjm for(int j = 1; j <= m; j++)
#define lol long long
#define lb long double
#define all(a) (x).begin(), (x).end();
#define endl '\n'
#define debug cout << "Completed" << endl;
#define fix(n, m) cout << fixed; cout.precision(m); cout << n << endl
#define Yes cout << "YES" << endl
#define No cout << "NO" << endl
#define bads cout << -1 << endl
#define pll pair<lol, lol>
#define mod 1000000007
#define fst first
#define snd second
#define inf 1e15
#define tofix cin
; string sbuf;
ostringstream buf(sbuf);
istringstream atcin(sbuf);
lol gcd(lol a, lol b) {
    while (a != 0 && b != 0) if (a > b) a %= b; else b %= a;
    return a + b;
}
lol lcm(lol a, lol b) {
    return a / gcd(a, b) * b;
}
bool issqrt(lol n) {
    lb x = sqrt(n);
    if (x == (lol)x) return 1;
    return 0;
}
lol easy(lol n) {
    if (n == 1) return 0;
    for (int i = 2; i * i <= n; i++) if (n % i == 0) return 0;
    return 1;
}
string bin(int v) {
    string ans;
    while (v != 0) {
        ans += to_string((v % 2));
        v /= 2;
    }
    return ans;
}
//priority_queue <pll, vector<pll>, greater<pll>> q
const long long N = 1e6 + 10;
lol ts, n, k, en, m, a[1048580];
void solve() {
    cin >> n >> k;
    en = pow(2, n);
    m = en / 2 + (en % 2);
    forch(1, m) {
        if (i % 2) a[i] = i;
        else a[i] = i + m - (i / 2);
    }
    cout << a[k] << endl;
}
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    ts = 1;
    //cin >> ts;
    while (ts--) solve();
}

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