Submission #710277

#	Time	Username	Problem	Language	Result	Execution time	Memory
710277		zyq_	Money (IZhO17_money)	C++17	0 / 100	1 ms	320 KiB

money

#include <bits/stdc++.h>
using namespace std;
#define int long long

int N, inp;
vector<int> v;
vector<int> cur;
set<int> s;
int ans;

int32_t main() {
    ios::sync_with_stdio(0);
    cin >> N;
    for(int a=0; a<N; a++){
        cin >> inp;
        v.push_back(inp);
        if(a == 0){
            cur.push_back(inp);
            continue;
        }
        if(inp < cur.back()){
            ans++;
            while(!cur.empty()){
                s.insert(cur.back());
                cur.pop_back();
            }
            cur.push_back(inp);
            continue;
        }
        //check if there is num
        if(s.lower_bound(inp) != s.upper_bound(cur.back())){
            ans++;
            while(!cur.empty()){
                s.insert(cur.back());
                cur.pop_back();
            }
            cur.push_back(inp);
            continue;
        }
        cur.push_back(inp);
    }
    cout << ans+1;
}

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