Submission #922477

#	Time	Username	Problem	Language	Result	Execution time	Memory
922477		Abdalaziz_Alshami	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	1 ms	348 KiB

Main

#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main()
{
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n; cin>>n;
    int a[n],x[n],y[n]; for(int i=0;i<n;i++) cin>>a[i];
    for(int i=0;i<n-1;i++)
    {
        if(a[i]>=a[i+1]) x[i]=a[i]-a[i+1]+1;
        else x[i]=0;
        if(i) x[i]+=x[i-1];
    } y[n-1]=0;
    for(int i=n-2;i>=0;i--)
    {
        if(a[i]<=a[i+1]) y[i]=a[i+1]-a[i]+1;
        else y[i]=0;
        y[i]+=y[i+1];
    }
    int ans=min(x[n-2],y[0]);
    for(int i=1;i<n-1;i++) ans=min(ans,x[i-1]+y[i+1]);
    cout<<ans<<endl;
}

• Subtask 1: 0 / 40
• Subtask 2: 0 / 60