Cod sursa(job #1803374)

Utilizator ORazvanOrban Razvan Alexandru ORazvan Data 11 noiembrie 2016 12:53:02
Problema Sortare prin comparare Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.74 kb
#include<iostream>
#include<fstream>
using namespace std;
int a[20],n,i;
void mergesort(int i,int m,int j){int b[20],x=i,k=1,y=m+1;
while(x<=m && y<=j)
     if (a[x]<a[y])
           b[k++]=a[x++];
     else
           b[k++]=a[y++];
 while (x<=m)
        b[k++]=a[x++];
 while (y<=j)
        b[k++]=a[y++];
 int t=i;
 for (k=1;k<=(j-i)+1;k++)
        a[t++]=b[k];
}                          void divimp(int i,int j)
{if (i<j)
    {int m=(i+j)/2;
     divimp(i,m);
     divimp(m+1,j);
     mergesort(i,m,j);}
}
int main()
{

    ifstream fin("algsort.in");
    ofstream fout("algsort.out");

fin>>n;
for(int i=1;i<=n;i++)
        {
         fin>>a[i];
        }
divimp(1,n);

for(i=1;i<=n;i++)
   fout<<a[i]<<' ';
}