Submission #1300246

#TimeUsernameProblemLanguageResultExecution timeMemory
1300246hynmjRabbit Carrot (LMIO19_triusis)C++20
100 / 100
70 ms11392 KiB
#include <bits/stdc++.h>
#define int long long
using namespace std;
const long long N = 2e5 + 5;
int a[N];
multiset<int> st;
int n, m, d;
void solve()
{
    cin >> n >> m;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
    }
    for (int i = 1; i <= n; i++)
    {
        if (a[i] > i * m)
            continue;
        d = i * m - a[i];
        auto k = st.upper_bound(d);
        if (k != st.end())
        {
            st.extract(*k);
        }
        st.insert(d);
    }
    cout << n - st.size();
}
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++)
    {
        // cout << "Case #" << i << ':' << ' ';
        solve();
        cout << endl;
    }
    return 0;
}
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