Submission #884034

#	Time	Username	Problem	Language	Result	Execution time	Memory
884034		vjudge1	Bubble Sort 2 (JOI18_bubblesort2)	C++17	Compilation error	0 ms	0 KiB

bubblesort2

#include <bits/stdc++.h>

using namespace std;
vector<int>aib;
void update(int pos,int val,int n)
{
    int i=pos;
    while(i<=n)
    {
        aib[i]+=val;
        i+=(i&(-i));
    }
}
int get(int pos,int n)
{
    int i=pos,s=0;
    while(i>0)
    {
        s=s+aib[i];
        i-=(i&(-i));
    }
    return s;
}
vector<int> countScans(vector<int>A, vector<int>X, vector<int>V)
{

    int n=A.size(),q=X.size();
    vector<int>Aux(n);
    vector<int>A1(n);
    for(int i=0;i<n;i++)
    {
       // cin>>A[i];
        Aux[i]=A[i];
        A1[i]=A[i];
    }
    sort(Aux.begin(),Aux.end());
    for(int i=0;i<n;i++)
    {
        int l=-1,r=n-1;
        while(l<r-1)
        {
            int mid=(l+r)/2;
            if(A[i]<=Aux[mid])
            r=mid;
            else
            l=mid;
        }
        A1[i]=r+1;
      //  cout<<A1[i]<<' ';
    }
   // cout<<'\n';
    vector<int>ans;
    for(int i=0;i<q;i++)
    {
        A[X[i]]=V[i];
        for(int j=0;j<n;j++)
        {
            Aux[j]=A[j];
        }
        sort(Aux.begin(),Aux.end());
        for(int j=0;j<n;j++)
        {
            int l=-1,r=n-1;
            while(l<r-1)
            {
                int mid=(l+r)/2;
                if(A[j]<=Aux[mid])
                r=mid;
                else
                l=mid;
            }
            A1[j]=r+1;
           // cout<<A1[j]<<' ';
        }
        aib.assign(n+1,0);
        int ans1=0;//cout<<"asa";
        for(int j=0;j<n;j++)
        {
            ans1=max(ans1,get(n,n)-get(A1[j],n));
           // cout<<"asa";
            update(A1[j],1,n);
        }

        ans.push_back(ans1);
       // cout<<ans1<<'\n';
    }
    return ans;
}
int main()
{
    int m,t;
    cin>>m>>t;
    vector<int>A(m);
    vector<int>X(t);
    vector<int>V(t);
    for(int i=0;i<m;i++)
    {
        cin>>A[i];
    }
    for(int i=0;i<t;i++)
    {
        cin>>X[i]>>V[i];
    }
    countScans(A,X,V);
    return 0;
}
/*
6 1
5 6 2 3 4 1
3 3

4 2
1 2 3 4
0 3
2 1

*/

Compilation message (stderr)

/usr/bin/ld: /tmp/cct5rQJA.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc0zSv3y.o:bubblesort2.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status