Submission #534150

#	Time	Username	Problem	Language	Result	Execution time	Memory
534150		Biaz	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	40 / 100	1033 ms	5316 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define fi first
#define se second
#define X first
#define Y second
#define ist insert
typedef long long ll;
//typedef pair<int,int> pii;
using namespace std;
int max(int a,int b){return a>b?a:b;}
int min(int a,int b){return a<b?a:b;}
const int INF=17000000000000000;//2147483647;
const int MOD=998244353;//1000000007;
const int N=200005;
int n;
int a[N],b[N];

int calc(int k){
    int s1=0,s2=0;
    for (int i=1;i<=k;i++)
        if (b[i]<=0)
            s1+=-b[i]+1;
    for (int i=n;i>k;i--)
        if (b[i]>=0)
            s2+=b[i]+1;
    return max(s1,s2);
}
void sol(){
    cin >>n;
    for (int i=1;i<=n;i++)
        cin >>a[i];
    for (int i=1;i<=n;i++)
        b[i]=a[i]-a[i-1];
    int ans=INF;
    for (int i=1;i<=n;i++)
        ans=min(ans,calc(i));
    cout <<ans<<'\n';

}
signed main()
{
    int _=1;
    //cin >>_;
    while (_--) sol();
    return 0;
}

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