Submission #710122

#	Time	Username	Problem	Language	Result	Execution time	Memory
710122		WH8	Money (IZhO17_money)	C++14	100 / 100	1299 ms	55208 KiB

money

#include <bits/stdc++.h>
using namespace std;
#define iloop(x, n) for (long long i = x; i < n; ++i)
#define jloop(x, n) for (long long j = x; j < n; ++j)
#define kloop(x, n) for (long long k = x; k < n; ++k)
#define dloop(x, n) for (long long d = x; d >= n; --d)
#define ll long long
#define pll pair<long long, long long>
#define pii pair<int, int>
#define vi vector<long long>
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define int long long
#define endl '\n'
#define debug(x) cout << #x << ": " << x << endl
#define FASTIO               \
    ios::sync_with_stdio(false); \
	cin.tie(0);              \
    cout.tie(0);


signed main(){
	int n; cin >> n;
	vi v(n); iloop(0, n) cin >> v[i];
	set<int> s;
	int i = 0;
	int cnt = 0;
	while (i < n){
		auto it = s.upper_bound(v[i]);
		s.insert(v[i]);
		while (i + 1 < n and v[i+1] >= v[i] and (it == s.end() or v[i+1] <= *it)){
			i++;
			s.insert(v[i]);
		}
		i++;
		cnt++;
	}
	cout << cnt;
}

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