Submission #541071

#	Time	Username	Problem	Language	Result	Execution time	Memory
541071		Bunny_man	Money (IZhO17_money)	C++17	0 / 100	0 ms	212 KiB

money

#include <bits/stdc++.h>

#define ll long long int
#define pb push_back
#define ui unsigned int
#define ld long double
#define buster ios_base::sync_with_stdio(NULL);cin.tie(0);cout.tie(0);

using namespace std;

int main()
{

    buster;

    ll tt = 1;

    //cin >> tt;

    while(tt--)
    {
        ll n;

        cin >> n;

        ll a[n + 1];

        for(ll i = 1; i <= n; i++)
        {
            cin >> a[ i ];
        }
        set <ll> st;
        st.insert(1000000000);
        ll cnt = 1000000000;
        ll ans = 1;
        for(ll i = 2; i <= n; i++)
        {
            if(a[ i ] == a[i - 1])
            {
                continue;
            }
            auto it = st.lower_bound(a[ i ]);
            if(a[ i ] < a[i - 1] || cnt != *it)
            {
                ans++;
                cnt = *st.upper_bound(a[ i ]);
            }
            st.insert(a[ i ]);
        }
        cout << ans;
    }   
}

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