Submission #650000

#	Time	Username	Problem	Language	Result	Execution time	Memory
650000		tigar	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	0 / 100	1 ms	340 KiB

Main

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
}
ll a[200020];
ll preff[200020], suff[200020];
ll razlike[200020];
int main()
{
    speed();
    int n; cin>>n;

    for(int i=1; i<=n; i++)cin>>a[i];
    razlike[0]=0; //razlike[i]=a[i]-a[i-1]
    for(int i=1; i<=n; i++)razlike[i]=a[i]-a[i-1];

    preff[0]=0; suff[n-1]=0;
    for(int i=2; i<=n; i++)
    {
        preff[i]=preff[i-1];
        if(razlike[i]<=0)preff[i]+=(-razlike[i]+1);
    }
    for(int i=n-1; i>=1; i--)
    {
        suff[i]=suff[i+1];
        if(razlike[i+1]>=0)suff[i]+=(razlike[i+1]+1);
    }
    //for(int i=0; i<n; i++)cout<<suff[i]<<" "<<preff[i]<<" "<<razlike[i]<<endl;
    ll rezz=INT_MAX;
    for(int i=1; i<=n; i++)
    {
        rezz=min(rezz, max(suff[i], preff[i]));
    }
    cout<<rezz;
    return 0;
}

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