Submission #671612

#	Time	Username	Problem	Language	Result	Execution time	Memory
671612		smartmonky	Money (IZhO17_money)	C++14	100 / 100	952 ms	55232 KiB

money

#include <bits/stdc++.h>
  
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define int long long
using namespace std;
 
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    set <int> st;
    vector <int> v(n + 1);
    int ans = 0;
    st.insert(1e9);
    for(int i = 1; i <= n; i++){
		cin >> v[i];
	}
	v[0] = -1e9;
	//v[n + 1]
	for(int i = 1; i <= n; i++){
		auto top = st.upper_bound(v[i]);
		bool flag = 0;
		int ev = 0;
		if(*top == 1e9)
			flag = 1;
		else
			ev = *top;
		while(i <= n && v[i + 1] >= v[i] && (v[i + 1] <= ev || flag)){
			st.insert(v[i]);
			i++;
		}
		st.insert(v[i]);
		ans++;
	}
	cout << ans;
	
}

Compilation message (stderr)

money.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~

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