Submission #690788

#	Time	Username	Problem	Language	Result	Execution time	Memory
690788		andrei_iorgulescu	Table Tennis (info1cup20_tabletennis)	C++14	100 / 100	76 ms	3056 KiB

tabletennis

#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")

using namespace std;

int n,k,a[150500];
int sol[150005];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> k;
    for (int i = 1; i <= n + k; i++)
        cin >> a[i];
    for (int i = 1; i <= k + 1; i++)
    {
        for (int j = n + k; j >= n - 1; j--)
        {
            int sum = a[i] + a[j];
            int st = i + 1,dr = j - 1;
            int sz = 1;
            sol[0] = a[i];
            sol[1] = a[j];
            while (st < dr and sz < n - 1 and sz + (dr - st + 1) >= n - 1)
            {
                if (a[st] + a[dr] == sum)
                {
                    sol[++sz] = a[st];
                    sol[++sz] = a[dr];
                    st++;
                    dr--;
                }
                else if (a[st] + a[dr] > sum)
                    dr--;
                else
                    st++;
            }
            if (sz == n - 1)
            {
                sort(sol, sol + n);
                for (int j = 0; j < n; j++)
                    cout << sol[j] << ' ';
                return 0;
            }
        }
    }
    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 9 / 9
• Subtask 3: 14 / 14
• Subtask 4: 15 / 15
• Subtask 5: 9 / 9
• Subtask 6: 14 / 14
• Subtask 7: 15 / 15
• Subtask 8: 13 / 13