Submission #469003

#	Time	Username	Problem	Language	Result	Execution time	Memory
469003		stefantaga	Bubble Sort 2 (JOI18_bubblesort2)	C++14	38 / 100	9017 ms	1860 KiB

bubblesort2

#include "bubblesort2.h"

#include <cstdio>
#include <cstdlib>
#include <vector>
#include <bits/stdc++.h>

using namespace std;
int aib[500005];
int ub(int x)
{
    return x&(-x);
}
int nr,n,i,v[500005];
map <int,int> m;
void update(int poz,int val)
{
    int i;
    for (i=poz;i<=nr;i+=ub(i))
    {
        aib[i]+=val;
    }
}
int suma(int poz)
{
    int i,sum=0;
    for (i=poz;i>=1;i-=ub(i))
    {
        sum=sum+aib[i];
    }
    return sum;
}
std::vector<int> countScans(std::vector<int> A,std::vector<int> X,std::vector<int> val){
	int q=X.size();
	n=A.size();
	for (i=0;i<n;i++)
    {
        v[i+1]=A[i];
    }
    for (i=1;i<=n;i++)
    {
        m[v[i]]=1;
    }
    for (i=0;i<q;i++)
    {
        m[val[i]]=1;
    }
    nr=0;
    for (auto ind: m)
    {
        nr++;
        m[ind.first]=nr;
    }
    for (i=1;i<=n;i++)
    {
        v[i]=m[v[i]];
    }
    int j;
    vector <int> sol;
    for (i=0;i<q;i++)
    {
        v[X[i]+1]=m[val[i]];
        int maxim=0;
        for (j=1;j<=n;j++)
        {
            maxim=max(maxim,suma(nr)-suma(v[j]));
            update(v[j],1);
        }
        for (j=1;j<=n;j++)
        {
            update(v[j],-1);
        }
        sol.push_back(maxim);
    }
    return sol;
}














/*



int readInt(){
	int i;
	if(scanf("%d",&i)!=1){
		fprintf(stderr,"Error while reading input\n");
		exit(1);
	}
	return i;
}

int main(){
	int N,Q;
	N=readInt();
	Q=readInt();

	std::vector<int> A(N);
	for(int i=0;i<N;i++)
		A[i]=readInt();

	std::vector<int> X(Q),V(Q);
	for(int j=0;j<Q;j++){
		X[j]=readInt();
		V[j]=readInt();
	}

	std::vector<int> res=countScans(A,X,V);

	for(int j=0;j<int(res.size());j++)
		printf("%d\n",res[j]);
}
*/

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