Submission #1207864

#	Time	Username	Problem	Language	Result	Execution time	Memory
1207864		raymoo_	Rabbit Carrot (LMIO19_triusis)	C++20	63 / 100	18 ms	7244 KiB

triusis

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
#define int long long
#define vect vector
#define bend(v) v.begin(),v.end()
#define eb emplace_back
using namespace std;

int32_t main() {
	ios_base::sync_with_stdio(0);
    cin.tie(nullptr);
    int n, M;
    cin >> n >> M;
    int a[n+1], b[n+1], h[n+1], ans=0;
    a[0]=b[0]=0;
    for(int i=1;n>=i;i++){
        cin >> a[i];
        if(a[i] > M && i==1){
            ans++;
            a[i]=M;
        }
        h[i] = a[i] - a[i-1] - M ;
        b[i] = -1*b[i-1] + h[i];
        b[i] *= -1; //cout<<b[i]<<' '<<h[i]<<' '<<a[i]<<endl;
    }
    vect<int> dp;
    for(int i=1;n>=i;i++){
        if(dp.empty()|| dp.back() <= b[i])dp.eb(b[i]);
        else if (b[i] >= b[1]){
            int p = upper_bound(bend(dp), b[i])-dp.begin();
            dp[p]=b[i];
        }
    }
    cout << ans+n-dp.size();
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 0 / 37