Submission #1126835

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126835		bvv23	Rack (eJOI19_rack)	C++20	0 / 100	0 ms	324 KiB

rack

// Ahmadov orz
/// successful failure
/// MALLL, SKILL ISSUEZ
#include <bits/stdc++.h>
/// #include <ext/pb_ds/assoc_container.hpp>
using namespace std;
/// using namespace __gnu_pbds;
#define int long long
#define pb push_back
#define pii pair<int, int>
#define all(v) v.begin(),v.end()
#define ff first
#define ss second
#define drop(x) cout<<x<<endl;return
// template <class T>
// using isTree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

/// sometimes you gotta think simple
struct custom_hash {
    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        x ^= FIXED_RANDOM;
        return x ^ (x >> 16);
    }
};
const int MOD = 1e9 + 7;
int binpow(int a, int b, int MOD) {
    if (b == 0) {
        return 1;
    }
    int res = binpow(a, b>>1, MOD);
    if (b&1) {
        return (((res * res) % MOD) * a) % MOD;
    }
    else {
        return (res * res) % MOD;
    }
}
void failure()
{
    int n, k;
    cin >> n >> k;
    int yaprak = 1;
    int dist = binpow(2,n,MOD);
    vector <int> pos;
    //cout << "mal: " << dist << endl;
    dist/=2;
    for (int i = 1; i <= dist; i++) {
        pos.pb(i);
        pos.pb(i + dist);
    }
    // for (int v:pos) {
    //     cout << v << " ";
    // }
    // cout << endl;
    drop(pos[k-1]);
}   
signed main() {  
    ios_base::sync_with_stdio(0); 
    cin.tie(NULL);                
    cout.tie(NULL);
    int tt = 1;
    // cin >> tt;
    while (tt--)
    {
        failure();
    }
}

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