Submission #144051

#	Time	Username	Problem	Language	Result	Execution time	Memory
144051		The_Wolfpack	Money (IZhO17_money)	C++14	0 / 100	2 ms	504 KiB

money

#include <bits/stdc++.h>
using namespace std;
const int NMAX=1e6+8;

int fen[NMAX];
void add(int x)
{
    for(;x<NMAX;x+=(x&-x)) fen[x]++;
}
int gget(int x)
{
    int res=0;
    for(;x>0;x-=(x&-x)) res+=fen[x];
    return res;
}
int n,a[NMAX];
int main()
{
    ios_base::sync_with_stdio(false);
    cin>>n;
    int res=0;
    vector<int>tmp;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        if(!tmp.size())
        {
            tmp.push_back(a[i]);
            continue;
        }
        else
        {
            if(a[i]<tmp.back() || gget(a[i]-1)>gget(tmp.back()))
            {
                res++;
                for(int x:tmp) add(x);
                tmp.clear();
            }
            tmp.push_back(a[i]);
        }
    }
    if(tmp.size()) res++;
    cout<<res<<endl;
    return 0;
}

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