median

#include <stdio.h>
#include<malloc/malloc.h>

void read1(int *p,int size) // input reading function
{
    int i;
    printf("Enter the array:");
    for(i=0;i<size;i++)
    {
        scanf("%d",p+i);
    }
}
float median(int *a, int *b,int size1,int size2)
{
    int size=size1+size2;
    int mid=size/2;
    int *c=(int*)malloc(sizeof(int)* size);
    int i=0,j=0,k=0;
    while(i<size1 && j<size2)   //Merge sort
    {
        if(a[i]<b[j])
        {
            c[k]=a[i];
            i++;
        }
        else
        {
            c[k]=b[j];
            j++;
        }
        k++;
    }
    while(i<size1)
    {
        c[k++]=a[i++];
    }
    
    while(j<size2)
    {
        c[k++]=b[j++];
    }
    
    if(size%2==0)
    return ((c[mid]+c[mid-1])/2.0); // for even median
    else
        return c[mid];          //for odd median
    
}
int main(int argc, const char * argv[])
{
    int size1,size2;
    int *a,*b;
    printf("Enter the size of 1st array:");
    scanf("%d",&size1);
    a=(int*)malloc(sizeof(int)* size1);
    read1(a,size1);
    printf("Enter the size of 2nd array:");
    scanf("%d",&size2);
    b=(int*)malloc(sizeof(int)* size2);
    read1(b,size2);
    printf( "Median : %f",  median(a, b, size1, size2));
    return 0;
}