Problem Analysis:

The problem is to input the two integers from the user and display their GCD and LCM.for this,the necessary parameters and header files are given below.

Input variables          processing variables          Output variables          Necessary header files

x(int)                          a(int)                                   hcf(int)                           stdio.h

y(int)                          b(int)                                   lcm(int)                           conio.h

c(int)

Algorithms:

1.start

2.Define a,b,x,y,t,hcf,lcm.

3.Input x.y from the user.

4.Calculation

a=x,  b=y;

while (b!=0)

{

t=b;

b=a%b;

a=t;    }

hcf=a;

lcm=(x*y)/hcf;

5. print the lcm and hcf.

6.stop

Codes:

outputs:

Compiling   , Debugging and Testings

enter any two integers:    10   32

GCD=2   and LCM=160