Cod sursa(job #2803091)

Utilizator filiptudose2007Tudose Filip filiptudose2007 Data 19 noiembrie 2021 14:18:45
Problema Schi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1 kb
#include <bits/stdc++.h>
using namespace std;
int n,aib[30003],a[30003],sol[30003];
int ub(int x)
{
    return (x&(-x));
}
void add(int poz,int val)
{
    for(int i=poz; i<=n; i+=ub(i))aib[i]+=val;
}
int sum(int poz)
{
    int s=0;
    for(int i=poz; i>=1; i-=ub(i))
        s+=aib[i];
    return s;
}
int cb(int x)
{
    int st=1,dr=n,ans=INT_MAX,mij=0;
    while(st<=dr)
    {
        mij=(st+dr)/2;
        int nr=sum(mij);
        if(nr==x&&mij<ans)
        {
            ans=mij;
        }
        else if(nr<x)st=mij+1;
        else dr=mij-1;
    }
    return ans;
}
int main()
{
    freopen("schi.in","r",stdin);
    freopen("schi.out","w",stdout);
    ///cin.sync_with_stdio(false);
    ///cin.tie(0);
    cin>>n;
    for(int i=1; i<=n; ++i)
    {
        cin>>a[i];
        aib[i]=ub(i);
    }
    for(int i=n; i>=1; i--)
    {
        int poz=cb(a[i]);
        add(poz,-1);
        sol[poz]=i;
    }
    for(int i=1; i<=n; ++i)cout<<sol[i]<<"\n";
    return 0;
}