제출 #1229150

#제출 시각아이디문제언어결과실행 시간메모리
1229150buixuiaRabbit Carrot (LMIO19_triusis)C++17
100 / 100
16 ms2752 KiB
#include<bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n, m, x, t = 0;
    cin>>n>>m;
    vector<int> v, b;
    for(int i = 1; i <= n; i++){
        cin>>x;
        if(x <= m * i) b.push_back(m * i - x);
    }
    for(auto x : b){
        auto it = upper_bound(v.begin(), v.end(), x);
        if(it == v.end()) v.push_back(x);
        else *it = x;
    }
    cout<<n - v.size()<<'\n';
    return 0;
}
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