5.43 (10 pts) What does the following program do? #include <stdio.h> 3 unsigned int mystery Cuns...

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5.43 (10 pts) What does the following program do? #include <stdio.h> 3 unsigned int mystery Cuns igned int a, unsigned int b)

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Answer 1

Answer #1

// Sample output

$고 CAUsers\Lenovo\Desktop\recursiveadd.exe sers LenovoDesktoptrecursiveadd.exe Enter two positive integers: 3 4 The result is$ Explanation:

The unsigned int mystery(unsigned int a, unsigned int b) compute multiplication of two integers by Recursive addition method.This takes two integers parameters a and b Where b must be +ve.

for ex:

let us pass a=3, b=4 as values a & b respectively

if we dive into mystery(3,4) function

here b=4

if (1==b) (i.e 1==4) condition fails

so

else part gets executed as

a+mystery(a,b-1) i.e (3+ mystery(3,3)

the above process repeats until b=1 by adding a value

3+3+3+3=12 which is multiplication of 3 by 4 (3*4=12)

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Answer 2

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