Question
a)
public static int recursive(int arr[], int low, int high, int key)
{
int mid = low + (high - low)/2;
if(arr[mid] == key)
{
return mid;
}
else if(arr[mid] < key)
{
return recursive(arr,mid+1,high,key);
}
else
{
return recursive(arr,low,mid-1,key);
}
}
b)
public static int recursive(int arr[], int low, int high, int key)
{
int mid = low + (high + low)/2;
if(arr[mid] == key)
{
return mid;
}
else if(arr[mid] < key)
{
return recursive(arr,mid-1,high,key);
}
else
{
return recursive(arr,low,mid+1,key);
}
}
c)
public static int recursive(int arr[], int low, int high, int key)
{
int mid = low + (high - low)/2;
if(arr[mid] == key)
{
return mid;
}
else if(arr[mid] < key)
{
return recursive(arr,mid,high,key);
}
else
{
return recursive(arr,low,mid-1,key);
}
}
d) None of the mentioneda.
a
b.
b
c.
c
d.
d
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Q. Choose the appropriate code that does binary search using recursion.
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