Submission #671599

#	Time	Username	Problem	Language	Result	Execution time	Memory
671599		smartmonky	Money (IZhO17_money)	C++14	0 / 100	0 ms	212 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;
 
const int N = 500001;
int f[N],s[N], pos[N];
int n;
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    set <int> st;
    vector <int> v(n + 1);
    int ans = 1;
    st.insert(1e9);
    for(int i = 1; i <= n; i++){
		cin >> v[i];
	}
	st.insert(v[1]);
	for(int i = 2; i <= n; i++){
		auto it = st.lower_bound(v[i - 1]);
		if(*it == 1e9 || *it > v[i]){
			st.insert(v[i]);
			continue;
		}else{
			st.insert(v[i]);
			ans++;
		}
	}
	cout << ans;
	
}

Compilation message (stderr)

money.cpp:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   14 | main(){
      | ^~~~

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