Submission #654285

#	Time	Username	Problem	Language	Result	Execution time	Memory
654285		four_specks	Pairs (IOI07_pairs)	C++17	30 / 100	38 ms	7572 KiB

pairs

#include <bits/stdc++.h>

using namespace std;

inline namespace
{
} // namespace

void solve()
{
    int b;
    int n;
    long m, d;
    cin >> b >> n >> d >> m;

    vector board(n, vector<long>(b));
    for (int i = 0; i < n; i++)
    {
        for (long &x : board[i])
            cin >> x, --x;
    }

    long cnt = 0;
    if (b == 1)
    {
        vector<long> a(n);
        for (int i = 0; i < n; i++)
            a[i] = board[i][0];
        sort(a.begin(), a.end());

        for (int i = 0; i < n; i++)
            cnt += i - (lower_bound(a.begin(), a.end(), a[i] - d) - a.begin());
    }
    else if (b == 2)
    {
    }
    else if (b == 3)
    {
    }

    cout << cnt << '\n';
}

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

    solve();

    return 0;
}

• Subtask 1: 6 / 6
• Subtask 2: 6 / 6
• Subtask 3: 6 / 6
• Subtask 4: 6 / 6
• Subtask 5: 6 / 6
• Subtask 6: 0 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8
• Subtask 9: 0 / 8
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10
• Subtask 12: 0 / 10
• Subtask 13: 0 / 10