Today i have attened an IT Services Company interview, where i was been asked to write the code for Reverse an Integer Value in C# with out using any Built In functions.
Here is the code i formulated in my mind. Go through it.
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApp02 { class Program { static void Main(string[] args) { Console.Write("Enter the Integer to Reverse: "); //Reading the Entered Number string strInVal = Console.ReadLine(); int inVal = Convert.ToInt32(strInVal); //Calling Reverse Function int outVal = Reverse(inVal); Console.WriteLine(String.Format("Revered Interger value is {0}", outVal)); Console.WriteLine("**** Press Any Key to Exit "); Console.Read(); } public static int Reverse(int inVal) { int result = 0; //Ex: 567 // Loop 1: // 567 % 10 = 7 // (0 * 10) + 7 = 7 // inVal = 567 /10 = 56 // Loop 2: // 56 % 10 = 6 // (7 * 10) + 6 = 76 // 56 / 10 = 5 // Loop 3: // 5 % 10 = 5 // (56 * 10) + 5 = 765 -- Achieved out result. // 5 / 10 = 0 // Do while condition ends do { result = (result * 10) + (inVal % 10); inVal = inVal / 10; } while (inVal > 0); return result; } } }
Results
Kudos!!! I hope it will defenitly be useful to some body. Unfortunately i was n’t been able to write it out in my paper in interview time, just after returning the paper only i got this idea, but no use, i thought asking paper back and write n give. Anyway’s some day it will be useful for some one.. KOOOOLLL