제출 #108014

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108014		Frankenween	Money (IZhO17_money)	C++17	0 / 100	2 ms	384 KiB

money

#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>

#define ull unsigned long long
#define pll pair<ll, ll>
#define mp make_pair
#define ll long long
#define pb push_back
#define deb(x) cout << #x << " = " << x << endl
#define all(x) x.begin(), x.end()
#define ld long double
const ll mod1 = (ll)1e9 + 7;
const ll mod2 = (ll)1e9 + 9;
const ll BASE = 47;
const ll inf = (ll)1e18;
const long double e = 2.718281828459;
const long double pi = 3.141592653;
const ld EPS = 1e-9;


using namespace std;


template <class T>
istream& operator>>(istream &in, vector<T> &arr) {
    for (T &cnt : arr) {
        in >> cnt;
    }
    return in;
};


void solve() {
    ll n;
    cin >> n;
    vector<ll> arr(n);
    cin >> arr;
    ll l = arr[0], r = arr[0];
    ll answer = 0;
    ll i = 1;
    while (i < n) {
        ll cnt_l = arr[i], cnt_r = arr[i];
        ll j = i;
        while (j + 1 < n and arr[j + 1] >= arr[j]) {
            if ((cnt_l >= l and arr[j + 1] <= r) or (cnt_l >= r) or (arr[j + 1] <= l)) {
                j++;
                cnt_r = arr[j];
            } else {
                break;
            }
        }
        answer++;
        r = max(r, cnt_r);
        l = min(l, cnt_l);
        i = j + 1;
    }
    cout << max(answer, 1LL);
}


int main() {
#ifndef LOCAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
#else
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    cout.precision(30);
    ll seed = time(0);
    //cerr << "Seed: " << seed << "\n";
    srand(seed);
    solve();
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55