| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1181711 | ngc | Rabbit Carrot (LMIO19_triusis) | C++20 | 52 ms | 4028 KiB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll MOD = 1e9 + 7;
int main(){
ll n, m;
cin >> n >> m;
vector<ll> a(n);
for(int i = 0; i < n; i++){
cin >> a[i];
a[i] -= (i+1) * m;
a[i] *= -1;
}
vector<ll> dp;
for(int i = 0; i < n; i++){
if(a[i] < 0) continue;
if(dp.empty()){
dp.push_back(a[i]);
continue;
}
if(a[i] >= dp.back()){
dp.push_back(a[i]);
continue;
}
int l = upper_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
dp[l] = a[i];
}
cout << n - dp.size();
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