제출 #821704

#제출 시각아이디문제언어결과실행 시간메모리
821704Youssif_ElkadiRabbit Carrot (LMIO19_triusis)C++17
100 / 100
68 ms3412 KiB
#include <bits/stdc++.h>
using namespace std;
const long long N = 2e5 + 5, M = 11, inf = 1e9 + 5, mod = 1e9 + 7;
long long dp[N];
long long n, m;
long long arr[N];
int main()
{
    cin >> n >> m;
    dp[0] = 0;
    long long mx = 0;
    for (long long i = 1; i <= n; i++)
        dp[i] = inf;
    arr[0] = 0;
    for (long long i = 1; i <= n; i++)
    {
        cin >> arr[i];
        if (arr[i] <= m * i)
        {
            arr[i] = -(arr[i] - i * m);
            long long it = upper_bound(dp, dp + n + 1, arr[i]) - dp;
            mx = max(mx, it);
            dp[it] = arr[i];
        }
    }
    cout << n - mx;
}
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