Merge sort

#include<stdio.h>
#define MAX 50
void mergeSort(int arr[],int low,int mid,int high);
void partition(int arr[],int low,int high);
int main(){
        int merge[MAX],i,n;
    printf("Enter the total number of elements: ");
    scanf("%d",&n);
    printf("Enter the elements which to be sort: "); for(i=0;i<n;i++){
         scanf("%d",&merge[i]);
    }
    partition(merge,0,n-1);
printf("After merge sorting elements are: ");
   for(i=0;i<n;i++){
        printf("%d ",merge[i]);
   }
return 0;
}
void partition(int arr[],int low,int high){
    int mid;
    if(low<high){
         mid=(low+high)/2;
         partition(arr,low,mid);
         partition(arr,mid+1,high);
         mergeSort(arr,low,mid,high);
    }
}
void mergeSort(int arr[],int low,int mid,int high){
    int i,m,k,l,temp[MAX];
    l=low;
    i=low;
    m=mid+1;
    while((l<=mid)&&(m<=high)){
         if(arr[l]<=arr[m]){
             temp[i]=arr[l];
l++;
        }
        else{
            temp[i]=arr[m];
            m++;
        }
        i++;
   }
   if(l>mid){
for(k=m;k<=high;k++){
             temp[i]=arr[k];
             i++;
         }
    }
    else{
for(k=l;k<=mid;k++){
             temp[i]=arr[k];
             i++;
         }
    }
        for(k=low;k<=high;k++){
         arr[k]=temp[k];
}
}

Output:
Enter the total number of elements:4
Enter the elements which to be sort:5 3 6 2
After merge sorting elements are:2 3 5 6