Submission #671796

#	Time	Username	Problem	Language	Result	Execution time	Memory
671796		Cutebol	Money (IZhO17_money)	C++17	100 / 100	985 ms	55244 KiB

money

#include <bits/stdc++.h>
 
using namespace std;
 
//void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define Scaramouche ios_base::sync_with_stdio(0) ; cin.tie(0) ; cout.tie(0);
#define int long long
#define itn int
#define endl "\n"
#define ff first
#define ss second
   
const int N = 1e6 + 5 ;
const int mod = 1e9 + 7 ;
const int inf = 1e7 ;

int n , cnt = 1 , last ;
int a[N] ;

void solve(){
	
	cin >> n ;
	for ( int i = 0 ; i < n ; i ++ ) cin >> a[i] ;
	multiset <int> cur ;
	cur.insert(a[0]) ;
	last = a[0] ;
	auto it = cur.end() ;
	for ( int i = 1 ; i < n ; i ++ ){
		auto it1 = cur.lower_bound(a[i]) ;
		auto it2 = cur.upper_bound(a[i]) ;
		if ( a[i] < last || ( it1 != it && it2 != it ) ){
			cnt ++ ;
			it = it2 ;
		}
		cur.insert(a[i]) ;
		last = a[i] ;
	}
	cout << cnt ;
}
 
signed main(){
//  fopn("talent") ;
    Scaramouche ;
    int t = 1 ;
//      cin >> t ;
    while ( t -- ) solve() ; 
}

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