제출 #373265

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
373265		rk42745417	Po (COCI21_po)	C++17	50 / 70	1082 ms	1644 KiB

Main

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

#define EMT ios::sync_with_stdio(0); cin.tie(0);
using ll = int64_t;
using ull = uint64_t;
using uint = uint32_t;
using ld = long double;
const int MOD = 1e9 + 7;
const int INF = 0x3f3f3f3f;
const ll LINF = 2e18;
const double EPS = 1e-9;

signed main() { EMT
	int n;
	cin >> n;
	vector<int> arr(n);
	ll ans = 0;
	for(int i = 0; i < n; i++)
		cin >> arr[i];
	int it = 0;
	while(it < n) {
		if(!arr[it]) {
			it++;
			continue;
		}
		int w = arr[it];
		for(int i = it; i < n; i++) {
			if(!arr[i])
				break;
			w = min(w, arr[i]);
		}
		ans++;
		for(int i = it; i < n; i++) {
			if(!arr[i])
				break;
			arr[i] -= w;
		}
	}
	cout << ans << '\n';
}

• Subtask 1: 50 / 70