Submission #1247591

#	Time	Username	Problem	Language	Result	Execution time	Memory
1247591		papaulo	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	19 ms	5820 KiB

triusis

#include <bits/stdc++.h>
using namespace std;

#define MAXN 200200
int a[MAXN];

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n, m;
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> a[i];
    int ans=0;
    vector<pair<int, int>> vec;
    for(int i=1;i<=n;i++) {
        int mx=i*m;
        a[i]-=mx;
        if(a[i]>0) {
            ans++;
            continue;
        }
        a[i]*=-1;
        vec.push_back({a[i], i});
    }
    vector<pair<int, int>> lens;
    for(auto x : vec) {
        auto p = lower_bound(lens.begin(), lens.end(), x);
        if(p==lens.end()) lens.push_back(x);
        else *p=x;
    }
    ans+=vec.size()-lens.size();
    cout << ans << endl;
    return 0;
}

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