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merge_sort.js
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merge_sort.js
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function Merge()
{
//Setting Time complexities
document.getElementById("Time_Worst").innerText="O(N log N)";
document.getElementById("Time_Average").innerText="Θ(N log N)";
document.getElementById("Time_Best").innerText="Ω(N log N)";
//Setting Space complexity
document.getElementById("Space_Worst").innerText="O(N)";
c_delay=0;
merge_partition(0,array_size-1);
enable_buttons();
}
function merge_sort(start,mid,end)
{
var p=start,q=mid+1;
var Arr=[],k=0;
for(var i=start; i<=end; i++)
{
if(p>mid)
{
Arr[k++]=div_sizes[q++];
div_update(divs[q-1],div_sizes[q-1],"red");//Color update
}
else if(q>end)
{
Arr[k++]=div_sizes[p++];
div_update(divs[p-1],div_sizes[p-1],"red");//Color update
}
else if(div_sizes[p]<div_sizes[q])
{
Arr[k++]=div_sizes[p++];
div_update(divs[p-1],div_sizes[p-1],"red");//Color update
}
else
{
Arr[k++]=div_sizes[q++];
div_update(divs[q-1],div_sizes[q-1],"red");//Color update
}
}
for(var t=0;t<k;t++)
{
div_sizes[start++]=Arr[t];
div_update(divs[start-1],div_sizes[start-1],"green");//Color update
}
}
function merge_partition(start,end)
{
if(start < end)
{
var mid=Math.floor((start + end) / 2);
div_update(divs[mid],div_sizes[mid],"yellow");//Color update
merge_partition(start,mid);
merge_partition(mid+1,end);
merge_sort(start,mid,end);
}
}