Kortit I

input/code.cpp: In lambda function:
input/code.cpp:19:20: error: 'accumulate' was not declared in this scope
   19 |             return accumulate(p1_wins.begin(), p1_wins.end(), 0) == target_a &&
      |                    ^~~~~~~~~~

#include <iostream>
#include <vector>
#include <bitset>
#include <algorithm>

using namespace std;

const int MAX_N = 100;

bool solve(int n, int target_a, int target_b, vector<int> &p1, vector<int> &p2)
{
    bitset<MAX_N + 1> used1, used2;
    vector<int> p1_wins(n, 0), p2_wins(n, 0);

    function<bool(int)> backtrack = [&](int pos) -> bool
    {
        if (pos == n)
        {
            return accumulate(p1_wins.begin(), p1_wins.end(), 0) == target_a &&
                   accumulate(p2_wins.begin(), p2_wins.end(), 0) == target_b;
        }

        for (int i = 1; i <= n; ++i)
        {
            if (!used1[i])
            {
                p1[pos] = i;
                used1[i] = true;

                for (int j = 1; j <= n; ++j)
                {
                    if (!used2[j])
                    {
                        p2[pos] = j;
                        used2[j] = true;

                        if (i > j)
                            p1_wins[pos] = 1;
                        else if (i < j)
                            p2_wins[pos] = 1;

                        if (backtrack(pos + 1))
                            return true;

                        used2[j] = false;
                        p1_wins[pos] = p2_wins[pos] = 0;
                    }
                }

                used1[i] = false;
            }
        }
        return false;
    };

    return backtrack(0);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int t;
    cin >> t;

    while (t--)
    {
        int n, a, b;
        cin >> n >> a >> b;

        vector<int> p1(n), p2(n);
        bool possible = solve(n, a, b, p1, p2);

        if (!possible)
        {
            cout << "NO\n";
        }
        else
        {
            cout << "YES\n";
            for (int x : p1)
                cout << x << ' ';
            cout << '\n';
            for (int x : p2)
                cout << x << ' ';
            cout << '\n';
        }
    }

    return 0;
}