제출 #589642

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
589642		Sharky	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	100 / 100	29 ms	6996 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define int long long
using vi = vector<int>;
using vb = vector<bool>;
using pi = pair<int, int>;

#define pb push_back
#define all(x) x.begin(), x.end()
#define FOR(i, a, b) for (int i = (int) a; i < (int) b; i++)
#define rep(i, n) for (int i = 0; i < (int) n; i++)
#define rep1(i, n) for (int i = 1; i <= (int) n; i++)
#define sz(x) (int) x.size()
#define fi first
#define se second
#define rd(a, sz) rep(i, n) cin >> a[i];
#define rd1(a, sz) rep1(i, n) cin >> a[i];

void __print(int x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? ", " : ""), __print(i); cerr << '}';}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(...) cerr << "[" << #__VA_ARGS__ << "] = ["; _print(__VA_ARGS__)
#else
#define debug(...)
#endif

template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }

const int MOD = 1e9 + 7;
const int inf = 1e18;

void solve(int tc) {
    int n, ans = inf; cin >> n;
    vector<int> a(n), dp(n, 0), pd(n, 0);
    rd(a, n);
    for (int i = 1; i < n; i++) dp[i] = dp[i - 1] + max(0LL, a[i - 1] - a[i] + 1);
    for (int i = n - 1; i; i--) pd[i - 1] = pd[i] + max(0LL, a[i] - a[i - 1] + 1);
    for (int i = 0; i < n; i++) ckmin(ans, max(dp[i], pd[i]));
    cout << ans << "\n";
}

signed main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int tt = 1; 
    // cin >> tt;
    rep1(i, tt) solve(i);
    return 0;
}

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