Submission #283995

#	Time	Username	Problem	Language	Result	Execution time	Memory
283995		Pyqe	Bubble Sort 2 (JOI18_bubblesort2)	C++17	17 / 100	9051 ms	1284 KiB

bubblesort2

#include "bubblesort2.h"
#include <bits/stdc++.h>

using namespace std;

long long n,as[500069],fw[500069],fi,inf=1e18;

void ud(long long x,long long w)
{
	for(fi=x;fi<=n;fi+=fi&-fi)
	{
		fw[fi]+=w;
	}
}

long long qr(long long lh,long long rh)
{
	long long z=0;
	
	for(fi=rh;fi;fi-=fi&-fi)
	{
		z+=fw[fi];
	}
	for(fi=lh-1;fi;fi-=fi&-fi)
	{
		z-=fw[fi];
	}
	return z;
}

vector<int> countScans(vector<int> a,vector<int> qp,vector<int> qw)
{
	long long t=qp.size(),rr,i,k,z;
	vector<int> sq;
	
	n=a.size();
	for(rr=0;rr<t;rr++)
	{
		a[qp[rr]]=qw[rr];
		for(i=0;i<n;i++)
		{
			as[i]=a[i];
			fw[i+1]=0;
		}
		sort(as,as+n);
		z=-inf;
		for(i=0;i<n;i++)
		{
			k=lower_bound(as,as+n,a[i])-as+1;
			z=max(z,qr(k+1,n));
			ud(k,1);
		}
		sq.push_back(z);
	}
	return sq;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 21
• Subtask 3: 0 / 22
• Subtask 4: 0 / 40