Submission #887448

#	Time	Username	Problem	Language	Result	Execution time	Memory
887448		8pete8	Money (IZhO17_money)	C++17	100 / 100	970 ms	61960 KiB

money

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include <cassert>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric> //gcd(a,b)
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
//#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-loops")
using namespace std;
#define int long long
const int mod=1e9+7,mxn=1e6+5,lg=20,inf=1e13;
set<int>s;
int val[mxn+10];
int32_t main(){
    fastio
    int n;cin>>n;
    int ans=0;
    for(int i=1;i<=n;i++)cin>>val[i];
    s.insert(inf);
    for(int i=1;i<=n;i++){
        int it=*s.upper_bound(val[i]);
        s.insert(val[i]);
        while(i+1<=n&&val[i+1]<=it&&val[i+1]>=val[i]){
            i++;
            s.insert(val[i]);
        }
        ans++;
    }
    cout<<ans;
    return 0;
}

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