Submission #976985

#	Time	Username	Problem	Language	Result	Execution time	Memory
976985		Isam	Money (IZhO17_money)	C++17	0 / 100	1 ms	468 KiB

money

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

#define eb emplace_back

constexpr int sz = 1e6 + 6;

int n, a[sz], ans;

set<int> st;

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for(register int i = 1; i <= n; ++i){
		cin >> a[i];	
	}
	
	st.insert((int)1E9 + 7);
	
	st.insert(a[1]);
	
	for(register int i = 2; i <= n; ++i){
		
		if(a[i] < a[i-1]){
			++ans;
		}else{
			
			auto it = st.lower_bound(a[i-1] + 1);
			
			if(*it <= a[i]) ++ans;
			
			
		}
		
		st.insert(a[i]);
		
	}
	
	cout << ans + 1 << '\n';
	
	
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:15:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   15 |  for(register int i = 1; i <= n; ++i){
      |                   ^
money.cpp:23:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   23 |  for(register int i = 2; i <= n; ++i){
      |                   ^

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