제출 #1334452

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1334452		retarde	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	100 / 100	18 ms	5076 KiB

Main

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

#define pb push_back
#define pf push_front
#define mp make_pair
#define fi first
#define se second
#define int long long
#define all(x) (x).begin(), (x).end()

typedef long double ld;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<vector<bool>> vvb;
typedef vector<vector<ll>> vvll;
typedef vector<string> vs;
typedef vector<vector<string>> vvs;
typedef vector<char> vc;
typedef vector<vector<char>> vvc;
typedef map<int, int> mii;
typedef unordered_map<int, int> umii;

const int mod = 1e9 + 7;
const int inf = INTMAX_MAX;
const bool tc = false;

inline void solve() {
    int n; cin >> n;
    vi a(n); for (int i = 0; i < n; i++) cin >> a[i];
    vi inc(n); inc[0] = 0; for (int i = 1; i < n; i++) {
        if (a[i] > a[i - 1]) inc[i] = inc[i - 1];
        else inc[i] = inc[i - 1] + (a[i - 1] - a[i] + 1);
    }
    vi dec(n); dec[n - 1] = 0; for (int i = n - 2; i >= 0; i--) {
        if (a[i] > a[i + 1]) dec[i] = dec[i + 1];
        else dec[i] = dec[i + 1] + (a[i + 1] - a[i] + 1); 
    }
    int ans = min(inc[n - 1], dec[0]);
    for (int i = 1; i < n - 1; i++) {
        ans = min(ans, max(inc[i], dec[i]));
    }
    cout << ans << '\n';
}

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

signed main() {
    ios::sync_with_stdio(false);
    cout.tie(0);
    cin.tie(0);
    //setIO();

    int t = 1;
    if (tc) {
        cin >> t;
    }

    while (t--) {
        solve();
    }
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void setIO(std::string)':
Main.cpp:52:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:53:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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