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Write a recursive method to determine whether a given string is a palindrome

Programming questions like reversing String using recursion or How to find if Array contains duplicates are some popular examples of programming question in Java. These programming interview questions are from my personal collections and I have only chosen those which are not very difficult, can be solved easily but at the same time can become too complex or confusing, present lots of follow-up questions and test fundamentals of programming, OOPS and design.

Mathematical recreations comprise puzzles and games that vary from naive amusements to sophisticated problems, some of which have never been solved.

They may involve arithmetic, algebra, geometry, theory of numbers, graph theory, topology, matrices, group theorycombinatorics dealing with problems of arrangements or designsset theorysymbolic logicor probability theory.

Any attempt to classify this colourful assortment of material is at best arbitrary. Included in this article are the history and the main types of number games and mathematical recreations and the principles on which they are based.

Details, including descriptions of puzzles, games, and recreations mentioned in the article, will be found in the references listed in the bibliography. At times it becomes difficult to tell where pastime ends and serious mathematics begins. An innocent puzzle requiring the traverse of a path may lead to technicalities of graph theory; a simple problem of counting parts of a geometric figure may involve combinatorial theory; dissecting a polygon may involve transformation geometry and group theory; logical inference problems may involve matrices.

A problem regarded in medieval times—or before electronic computers became commonplace—as very difficult may prove to be quite simple when attacked by the mathematical methods of today.

Mathematical recreations have a universal appeal. The urge to solve a puzzle is manifested alike by young and old, by the unsophisticated as well as the sophisticated. An outstanding English mathematician, G. Hardyobserved that professional puzzle makers, aware of this propensityexploit it diligently, knowing full well that the general public gets an intellectual kick out of such activities.

The relevant literature has become extensive, particularly since the beginning of the 20th century.

Some of it is repetitious, but surprisingly enough, successive generations have found the older chestnuts to be quite delightful, whether dressed in new clothes or not. Much newly created material is continually being added. A few survived from the ancient Greeks and Romans: Such activities were most prominent on the Continent, particularly in Italy and Germany.

Kinds of problems The problems in general were of two kinds: The first required little or no mathematical skill, merely general intelligence and ingenuity, as for example, so-called decanting and difficult crossings problems.

A typical example of the former is how to measure out one quart of a liquid if only an eight- a five- and a three-quart measure are available. Difficult crossings problems are exemplified by the dilemma of three couples trying to cross a stream in a boat that will hold only two persons, with each husband too jealous to leave his wife in the company of either of the other men.

Many variants of both types of problems have appeared over the years. Some examples Problems involving computation also took on a variety of forms; some were as follows:C Program to Check whether a given String is Palindrome or not using Recursion Posted on February 14, by Manish.

The following C program, with recursion, determines whether the entered string is a palindrome or not. A palindrome is a word, phrase or sentence that reads the same backward or forward. So here's how we can recursively determine whether a string is a palindrome.

If the first and last letters differ, then declare that the string is not a palindrome. Otherwise, strip off the first and last letters, and determine whether the string that remains—the subproblem—is a palindrome. (Click here for bottom) P p p, P Momentum.

Utility of the concept of momentum, and the fact of its conservation (in toto for a closed system) were discovered by Leibniz.p.

Page. Equivalently: pg.

Plurals: pp. and pgs. P. Jun 27, · Solution 1: How to check if String is Palindrome using Recursion Easiest way to find if a given String is Palindrome or not is by writing a recursive function to reverse the String first and then comparing given String with the reversed String, if both are equal then given String is palindrome.

I tried to write the program for testing a string if it's a palindrome or not, but I always get the output as it's not one.

What's wrong with my . /*A C program is executed as if it is a function called by the Operating System, the Operating System can and does pass parameters to the program.

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C Program for Palindrome Check using Recursion