EXERCISE - 10 FUNCTIONS

A) Write a function cumulative_product to compute cumulative product of a list 
of numbers.
B) Write a function reverse to reverse a list. Without using the reverse 
function.
C) Write function to compute gcd, lcm of two numbers.

A) AIM: Write a function cumulative_product to compute cumulative product of a 
list of numbers.

SOURCE CODE:

def cumulative_product(numlist):
    product=1
    cp=[]
    for ele in numlist:
        product=product*ele
        cp.append(product)
    return cp

numlist=[]
n=int(input("Enter number of elements to be insert:"))
for i in range(n):
    ele=int(input("Enter element:"))
    numlist.append(ele)
cp=cumulative_product(numlist)
print("Cumulative product of list elements is ",cp)

OUTPUT:

Enter number of elements to be insert:4
Enter element:3
Enter element:2
Enter element:4
Enter element:1
Cumulative product of list elements is  24


B) AIM: Write a function reverse to reverse a list. Without using the reverse 
function.

SOURCE CODE:

def reverse(numlist):
    i=0
    j=len(numlist)-1
    while(i<=j):
        temp=numlist[i]
        numlist[i]=numlist[j]
        numlist[j]=temp
        i=i+1
        j=j-1
    return
numlist=[]
n=int(input("Enter number of elements to be insert:"))
for i in range(n):
    ele=int(input("Enter element:"))
    numlist.append(ele)
reverse(numlist)    
print("After reverse list elements are:\n",numlist)

OUTPUT:

Enter number of elements to be insert:4
Enter element:2
Enter element:3
Enter element:1
Enter element:5
After reverse list elements are:
[5, 1, 3, 2]


C) AIM: Write function to compute gcd, lcm of two numbers.

SOURCE CODE:

gcd=lambda a,b: a if b==0 else gcd(b,a%b)
lcm=lambda a,b: (a*b)/gcd(a,b)
num1=int(input("Enter first number:"))
num2=int(input("Enter second number:"))
print("LCM of %d and %d is %d"%(num1,num2,lcm(num1,num2)))
print("GCD of %d and %d is %d"%(num1,num2,gcd(num1,num2)))


OUTPUT:

Enter first number:8
Enter second number:24
LCM of 8 and 24 is 24
GCD of 8 and 24 is 8