Scalaj sort
<script>
// JavaScript program for Merge Sort
// Merges two subarrays of arr[].
// First subarray is arr[l..m]
// Second subarray is arr[m+1..r]
function merge(arr, l, m, r)
{
var n1 = m - l + 1;
var n2 = r - m;
// Create temp arrays
var L = new Array(n1);
var R = new Array(n2);
// Copy data to temp arrays L[] and R[]
for (var i = 0; i < n1; i++)
L[i] = arr[l + i];
for (var j = 0; j < n2; j++)
R[j] = arr[m + 1 + j];
// Merge the temp arrays back into arr[l..r]
// Initial index of first subarray
var i = 0;
// Initial index of second subarray
var j = 0;
// Initial index of merged subarray
var k = l;
while (i < n1 && j < n2) {
if (L[i] <= R[j]) {
arr[k] = L[i];
i++;
}
else {
arr[k] = R[j];
j++;
}
k++;
}
// Copy the remaining elements of
// L[], if there are any
while (i < n1) {
arr[k] = L[i];
i++;
k++;
}
// Copy the remaining elements of
// R[], if there are any
while (j < n2) {
arr[k] = R[j];
j++;
k++;
}
}
// l is for left index and r is
// right index of the sub-array
// of arr to be sorted */
function mergeSort(arr,l, r){
if(l>=r){
return;//returns recursively
}
var m =l+ parseInt((r-l)/2);
mergeSort(arr,l,m);
mergeSort(arr,m+1,r);
merge(arr,l,m,r);
}
// UTILITY FUNCTIONS
// Function to print an array
function printArray( A, size)
{
for (var i = 0; i < size; i++)
document.write( A[i] + " ");
}
var arr = [ 12, 11, 13, 5, 6, 7 ];
var arr_size = arr.length;
document.write( "Given array is <br>");
printArray(arr, arr_size);
mergeSort(arr, 0, arr_size - 1);
document.write( "<br>Sorted array is <br>");
printArray(arr, arr_size);
// This code is contributed by SoumikMondal
</script>
Sayyed Aaman
