Submission #916298

#	Time	Username	Problem	Language	Result	Execution time	Memory
916298		cot	Money (IZhO17_money)	C++14	0 / 100	1 ms	440 KiB

money

#include <iostream>
#include <algorithm>
#include <climits>
#include <array>
#include <map>
#include <set>
#define int long long
#define ff first
#define ss second
#define all(x) x.begin(),x.end();
#define pb push_back
#define pp pop_back
#define r0 return 0
using namespace std;
const int N = 2 * 1e6 + 5;
int n,m,l;
int a[N],mn,ans, st;
set <int> s;
bool araferi(int l,int r){
    if(s.upper_bound(l) != s.end() && *s.upper_bound(l) < r) return false;
    else return true;
}
signed main(){
    cin >> n;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
    }
    for (int k = 1; k <= n; k++) {
        mn = a[k];
        ans++;
        st = k;
        while(a[k] < a[k + 1] && araferi(mn, a[k + 1])){
            k++;
        }
        for (int i = st; i <= k; i++) {
            s.insert(a[i]);
        }
    }
    cout << ans;
    cout << endl;
    r0;
}

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