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What is the merits and demerit of recursion in algorithm?
The advantages of recursion tend to revolve around the fact that there are quite a few algorithms which lend themselves to recursion (tree traversal, binary searches, quick sort, etc.) The disadvantages of recursion include: * finite number of recursive steps (limited heap space) * speed/efficiency (easier to increment a loop counter than call a function)
What is a recursive call. Which data structure is used in it?
Stack. Because of its LIFO (Last In First Out) property it remembers its 'caller' so knows whom to return when the function has to return. Recursion makes use of system stack for storing the return addresses of the function calls. Every recursive function has its equivalent iterative (non-recursive) function. Even when such equivalent iterative procedures are written, explicit stack is to be used.
What are the advantages of the recursion in c plus plus?
Any problem that can be solved by dividing the problem into smaller problems of the same type is a good candidate for recursion. However, there are actually very few applications that cannot be resolved more efficiently with an iterative loop. It therefore pays to know when recursion is unavoidable and when it is optional. The main benefit to recursion is that each instance of the function maintains its own set of non-static local variables completely independently of all other instances. But if these variables are of no use to the function when a recursive call returns, then an iterative implementation would be more efficient. Function calls are expensive in terms of memory consumption and performance, so the fewer we make, the better. A classic example of recursive application is the quicksort algorithm. In simple terms, quicksort is a function that accepts a subset of data. The data is usually stored in an array and the function accepts the left and right index of the subset to be sorted. Initially this will be lower and upper bounds of the entire array, but if the indices indicate a subset with fewer than 2 items, the function immediately exits. This effectively defines the return path from the recursions. Assuming there are 2 or more items, the function selects one of the items (the pivot) and then sorts the array such that items less than the pivot are placed to its left, and items greater or equal to its right. This moves the pivot into its final position, but the items on either side may still be unsorted. Thus the function calls itself twice, once for each of these subsets, which gradually reduces the problem down into smaller and smaller subsets until a subset has fewer than 2 items, at which point the recursion unwinds to the previous instance. Recursion is required because when the first recursive call returns, the subset to the left of the pivot is guaranteed to be sorted, but the subset to the right is not. This means we must maintain local variables in order to determine the lower and upper bounds of that subset. Although quicksort is an elegant application of recursion, there is still room for improvement. Firstly, it is better to make a recursive call upon the smaller of the two subsets. The smaller the subset, the fewer recursions that will be incurred sorting it. Secondly, since the second recursion is also the last statement in the function, there is no need to maintain the local variables when it returns. Thus the second recursion can be implemented as a tail call. This effectively means we modify the existing local variables to suit and then recall the same instance (with a goto). This reduces the depth of recursion by one function call per recursion which will quickly add up to a significant boost in efficiency.
A member function that allow the user of the class to change the value in a data member is known as?
I presume you mean C++, rather than C.That type of function is known as a mutator function.
When is it better to pass an entire array of data to a function rather than individual elements?
It is better to do this when the function needs to work on the entire array, rather than on individual elements. However, do not pass the array by value; always pass by reference.
Is breadth first search recursive in nature?
No, breadth-first search is not inherently recursive in nature. It typically uses a queue data structure to keep track of the nodes to visit next, rather than relying on recursive function calls.
Is BFS recursive?
No, Breadth-First Search (BFS) is not inherently recursive. It is typically implemented using a queue data structure rather than recursion.
What is the merits and demerit of recursion in algorithm?
The advantages of recursion tend to revolve around the fact that there are quite a few algorithms which lend themselves to recursion (tree traversal, binary searches, quick sort, etc.) The disadvantages of recursion include: * finite number of recursive steps (limited heap space) * speed/efficiency (easier to increment a loop counter than call a function)
What is a recursive call. Which data structure is used in it?
Stack. Because of its LIFO (Last In First Out) property it remembers its 'caller' so knows whom to return when the function has to return. Recursion makes use of system stack for storing the return addresses of the function calls. Every recursive function has its equivalent iterative (non-recursive) function. Even when such equivalent iterative procedures are written, explicit stack is to be used.
How many types of recursion are there in c language?
Recursion in c language is a method where the function calls itself, within or outside the scope. Using Recursion, complicated problems can be divided into smaller parts so that solving them becomes more manageable. The recursion technique is available in Java, JavaScript, and C++.serves the same purpose. The type of Recursion in C • Direct Recursion • Indirect Recursion. Direct Recursion Recursion can call the function n-number of times. In the case of direct Recursion, the function calls itself inside the same position or in the local scope Direct Recursion problems are the Fibonacci series, a program to print 50 natural numbers. Indirect Recursion In the case of Indirect Recursion, a function X calls function Y, and function Y calls any function Z. Under certain conditions, function Z calls function A. In this case, function A is indirectly related to function Z. Indirect Recursion is also known as mutual Recursion, as more than one function runs a program. It is a two-step recursive function call process for making a recursive function call. Below mentioned are also type of Recursion: Tail Recursion No Tail/Head Recursion Linear Recursion Tree Recursion Tail Recursion A function is said to be tail recursion if it calls itself and also calls the last or the previous statement executed in the process. Head Recursion A function is said to be Head Recursion if it calls itself and also calls the first or the beginning statement executed in the process. Linear Recursion A function is said to be a linear recursive function if it makes a single call to itself each time the procedure executes itself and grows linearly depending on the size of the problem. Tree Recursion Tree Recursion is different from linear Recursion. Rather than making only one call to itself, that function makes more than one recursive call to the process within the recursive function. Following are the steps to solve the recursive problem in C: Step 1: Create a function and assign the work a part should do. Step 2: Select the subproblem and assume that the function already works on the problem. Step 3: Get the answer to the subproblem and use it to resolve the main issue. Step 4: The 90% of the problem defined is solved.
Is the circle a function?
No, it is a shape rather than a function but it can be described using an algebraic function.
What part of speech is rather?
"Rather" can function as an adverb, conjunction, or determiner in a sentence.
Which company was known for its size rather than for its efficiency or innovation?
U.S. Steel
What is the application of pluse transformer?
why should we use pulse transformer rather than ordinary transformer
What is currys number?
04/19/1946
Who did efficiency progressives believe that cities should be run by?
Efficiency progressives believe that cities should be ran by the government.
What does the form follows function most lickely mean?
The phrase "form follows function" suggests that the design and shape of an object should primarily be based on its intended purpose or function, rather than on aesthetic considerations. This principle emphasizes practicality and usability, advocating for designs that enhance performance and efficiency. In architecture and product design, it encourages creators to prioritize the utility of a structure or item, resulting in a form that naturally emerges from its function.
