Submission #580905

#	Time	Username	Problem	Language	Result	Execution time	Memory
580905		Theo830	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	1 ms	340 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> Ii;
#define iii pair<ll,ii>
#define ull unsigned ll
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
int main(void){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n;
    cin>>n;
    ll arr[n];
    ll b[n];
    f(i,0,n){
        cin>>arr[i];
    }
    ll ans = 1e18;
    ll L[n] = {0},R[n] = {0};
    f(i,0,n-1){
        b[i] = arr[i+1] - arr[i];
        ll posa = 0;
        if(b[i] <= 0){
            posa = -b[i] + 1;
        }
        L[i+1] = L[i] + posa;
    }
    for(ll i = n-2;i >= 0;i--){
        ll posa = 0;
        if(b[i] >= 0){
            posa = b[i] + 1;
        }
        R[i] = R[i+1] + posa;
    }
    f(i,0,n - 1){
        ans = min(ans,max(L[i],R[i]));
    }
    cout<<ans<<"\n";
}

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