return and void functions

Void functions

Implemenation on couting 10 random even and odd numbers

import random

def main():

  sub(10)

def sub(n):

  counteven=0

  countodd=0

  for i in range(n):

    a=random.randint(10,100)

    print(a) 

    if a%2==0:

      counteven+=1

    else:

      countodd+=1

  print("\n",a,counteven,countodd)

main()

Return functions

import random

def main():
    #we have to assign variables to function to return values
    #it's function like mapping
    #the first variables evenc is mapped to couteven of sub
    evenc,oddc=sub(10)
    print("evencout is",evenc)
    print("odd count is",oddc)
 


def sub(n):
  counteven=0
  countodd=0
  for i in range(n):
    a=random.randint(10,100)
    print(a)
    if a%2==0:
      counteven+=1
    else:
      countodd+=1
   #we can return more than one variables 
  return(counteven,countodd)

main()

easiest example

#this is return function

def ret():

a=33

return(a)

def mohan():

#return function directly output return values

if(ret()==33):

print("echo")

print(ret())

mohan()

print(ret())

result

33 echo 33