Submission #38845915

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Source Code Expand

#ifdef ONPC
#define _GLIBCXX_DEBUG
#else
#pragma GCC optimize("O3")
#pragma unroll
#endif

#include <bits/stdc++.h>

using namespace std;

typedef long double ld;
typedef long long ll;

bool det(ll n, ll k) {
    ll pw = (1LL << 60);
    while (n > 0) {
        while (pw > n) {
            pw >>= 1;
        }
        n -= pw;
        if (k >= pw) {
            k -= pw;
        }
        if (n < k) {
            return false;
        }
    }
    return true;
}

ll Get(ll n, ll k) {
    if (n % 2 == 0) {
        if (det(n / 2 - 1, (k - 1) / 2)) {
            return ((k - 1) ^ 1) + 1;
        } else {
            return k;
        }
    } else {
        if (k > 1) {
            k = Get(n - 1, k - 1) + 1;
        }
        if (k < n) {
            k = Get(n - 1, k);
        }
        return k;
    }
}

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
#ifdef ONPC
    freopen("../input.txt", "r", stdin);
#endif
    int q;
    cin >> q;
    while (q--) {
        ll n, k;
        cin >> n >> k;
        cout << Get(n, k) << "\n";
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp:5: warning: ignoring #pragma unroll  [-Wunknown-pragmas]
    5 | #pragma unroll
      | 

Judge Result