Submission #1187583

#	Time	Username	Problem	Language	Result	Execution time	Memory
1187583		ffeyyaae_	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	16 ms	2244 KiB

triusis

#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+5;
int n, M;
int keep[N];
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> M;
    for( int i=1;i<=n;i++ )
    {
        int a; cin >> a;
        keep[i] = M*i - a;
    }
    vector<int> vec;
    for( int i=1;i<=n;i++ )
    {
        if( keep[i] < 0 ) continue;
        int idx = upper_bound( vec.begin(), vec.end(), keep[i] )-vec.begin();
        if( idx == vec.size() ) vec.push_back( keep[i] );
        else vec[idx] = keep[i];
    }
    cout << n-vec.size();
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37