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A recursive call in an algorithm is when a function (that implements this algorithm) calls itself.
For example, Quicksort is a popular algorithm that is recursive.
The recursive call is seen in the last line of the pseudocode, where the quicksort function calls itself.
function quicksort('array') create empty lists 'less' and 'greater' if length('array') ≤ 1 return 'array' // an array of zero or one elements is already sorted select and remove a pivot value 'pivot' from 'array' for each 'x' in 'array' if 'x' ≤ 'pivot' then append 'x' to 'less' else append 'x' to 'greater' return concatenate(quicksort('less'), 'pivot', quicksort('greater'))
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When you choose iterative or recursive algorithm?
If you cannot find any iterative algorithm for the problem, you have to settle for a recursive one.
What is recursive algorithm and write a recursive algorithm to reverse a string also trace it for any string data?
A recursive algorithm is an algorithm which calls itself with "smaller (or simpler)" input values, and which obtains the result for the current input by applying simple operations to the returned value for the smaller (or simpler) input. Heres a recursive algorithm to reverse a string char *rev(char str[],int pos1,int pos2) { if(pos1<pos2) { char temp=str[pos1]; str[pos1]=str[pos2]; str[pos2]=temp; return rev(str,pos1+1,pos2-1); } return str; } You can call this function like this char *r=rev("reverse it",0,9);
What causes a recursive algorithm to stop calling itself?
If the condition has been reached.
Explain non-recursive and recursive algorithm for postorder traversal on binary tree?
Step 1:- select first root node (t), start travelsing left contin
What is recursive algorithm?
Algorithm can be defined as an interpretable, finite set of instructions for dealing with contigencies and accompanying task that has recognizable end-points for given inputs. It is a tool for solving a well computational problem. A recursive algorithm is one which calls itself.
