Submission #598055

#	Time	Username	Problem	Language	Result	Execution time	Memory
598055		Summers	Money (IZhO17_money)	C++14	100 / 100	955 ms	61952 KiB

money

#include<bits/stdc++.h>
#include<set>
#define endl '\n'
using namespace std;
set<long long>st;
long long a[1000001];
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    long long i,j,n,ans=0;

    cin>>n;

    for(i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    st.insert(a[1]); st.insert(1000001);

    for(i=1;i<=n;)
    {
        auto it=st.upper_bound(a[i]);

        st.insert(a[i]);i++;
        while(i<=n && a[i]>=a[i-1] && a[i]<=(*it))
        {
            st.insert(a[i]); i++;
        }
        ans++;
    }
    cout<<ans<<endl;

}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:13:17: warning: unused variable 'j' [-Wunused-variable]
   13 |     long long i,j,n,ans=0;
      |                 ^

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