# MULTIPLICATION of ANY NUMBER of DIGITS of MULTIPLICAND & MULTIPLIER

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 Submitted on: 1/9/2016 9:45:37 AM By: Mr SHINE KADANATTU AYYAPPAN Level: Intermediate User Rating: Unrated Compatibility: C, C++ (general) Views: 4586

While studying for Engineering under CALICUT UNIVERSITY ,KERALA in INDIA , in 2005 FEB MARCH session of exams I wrote an exam for C programming which is common to ALL which is a Combined 1 and 2 Semester paper .In the Question paper for C programming I saw a Question which show as below . Write a C Programme to Multiply a 55 Digit Number with 5 Digit number .I tried to answer for that. Now I wrote the code for the same(any number of digits of Multiplicand and Multiplier ) and ends in success. The two variables m & n are used to store the number of digits in Multiplicand and Multiplier respectively .I created an array * mulpc of index m store the digits of the Multiplicand and then created another array *multp of index n to store the digits of Multiplier .I created a nXm ARRAY **Answer to store the products of each number in Multiplier with Multiplicand .Here k=m+n .after multiplying the LSB number of Multiplier with The Multiplicand it is stored from (Answer +0+0)to (Answer +0+m).Then after the multiplication of next LSB of Multiplier with Multiplicand it will be stored in (Answer+ 1+0) to (Answer +1+m) Like that we will proceed to Answer+ n+0 to (Answer +n+m) .Like that it goes .After that column wise elements of the ARRAY (Answer +n+k) is added and stored in Array Prod_res[k] where Prod_res[k] is the Final Product .I am here by attaching the codes .

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