제출 #494950

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
494950		Ronin13	Money (IZhO17_money)	C++14	9 / 100	1 ms	320 KiB

money

#include<bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
#define inf 1e9+1
#define linf 1e18+1
using namespace std;
const int NMAX=1e6+1;


void solve(){
    int n;cin>>n;
    int a[n+1];
    for(int i=1;i<=n;i++)cin>>a[i];
    set<int>st;

    int l=1;
   int r=2;
    int cnt=0;
    while(r<=n){

        int x;
        if(st.size()==0)x=inf;
        else x=*st.upper_bound(a[l]);
        if((a[r]>=a[r-1])&&(x>=a[r])){
            r++;
        }
        else{
            cnt++;
            for(int i=l;i<r;i++){
                st.insert(a[i]);
            }
            l=r;
            r++;
        }
    }
    cnt++;
    cout<<cnt<<"\n";
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    int test=1;//cin>>test;
    while(test--)solve();
}

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