Submission #1126596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126596		brover29	Money (IZhO17_money)	C++20	0 / 100	4 ms	4936 KiB

money

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
#define f first
#define s second
using ll = long long;
const ll N=2e5+29;
const string br="617283";

ll n,a[N],ans=1,k;
vector<ll>b[N];
set<ll>s;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin>>n;
    for(ll i=1;i<=n;i++){
        cin>>a[i];
    }
    s.insert(a[1]);
    for(ll i=2;i<=n;i++){
        if(a[i]==a[i-1]){
            continue;
        }
        auto j=s.lower_bound(a[i]);
        if(j==s.begin()){
            ans++;
            s.insert(a[i]);
            continue;
        }
        j--;
        if(*j!=a[i-1]){
            ans++;
        }
        s.insert(a[i]);
    }
    cout<<ans;

}

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