Submission #699075

#	Time	Username	Problem	Language	Result	Execution time	Memory
699075		jiahng	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	100 / 100	96 ms	7188 KiB

Main

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
#define int ll
typedef pair<int, int> pi;
typedef vector <int> vi;
typedef vector <pi> vpi;
typedef pair <pi,pi> pipi;
typedef pair<pi, ll> pii;
typedef set <ll> si;
typedef long double ld;
#define f first
#define s second
#define mp make_pair
#define FOR(i,s,e) for(int i=s;i<=int(e);++i)
#define DEC(i,s,e) for(int i=s;i>=int(e);--i)
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
#define aFOR(i,x) for (auto i: x)
#define mem(x,i) memset(x,i,sizeof x)
#define fast ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define maxn 1000010
#define INF (ll)1e18
#define MOD 1000000007
typedef pair <vi, int> pvi;
typedef pair <int,pi> ipi;
typedef vector <pii> vpii;
#define DEBUG 0
#pragma GCC optimize("trapv")

int N,Q,w;
int ss[maxn],suff[maxn],A[maxn];

int32_t main(){
    cin >> N;
    FOR(i,1,N) cin >> A[i];
    FOR(i,2,N) ss[i] = ss[i-1] + max(0LL, A[i-1] + 1 - A[i]);
    DEC(i,N-1,1) suff[i] = suff[i+1] + max(0LL, A[i+1] + 1 - A[i]);

    int ans = INF;
    FOR(k,1,N) ans = min(ans, max(ss[k],suff[k]));
    cout << ans;

}

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