Write a Python Program to Find the Sum of Natural Numbers

num = 16
if num < 0:
   print("Enter a positive number")
else:
   sum = 0
   while(num > 0):
       sum += num
       num -= 1
   print("The sum is", sum)

Write a python program to Shuffle Deck of Cards

import itertools, random
deck = list(itertools.product(range(1,14),['Spade','Heart','Diamond','Club']))
random.shuffle(deck)
print(deck)

Write a Python function to Convert Decimal to Binary

def convertToBinary(n):
   if n > 1:
       convertToBinary(n//2)
   print(n % 2,end = '')

wrtie a python function to solve Tower Of Hanoi and print necessary statements

def TowerOfHanoi(n , source, destination, auxiliary): 
    if n==1: 
        print("Move disk 1 from source",source,"to destination",destination) 
        return
    TowerOfHanoi(n-1, source, auxiliary, destination) 
    print("Move disk",n,"from source",source,"to destination",destination) 
    TowerOfHanoi(n-1, auxiliary, destination, source) 

Write a python function to find the number of times every day occurs in a Year and print them

import datetime  
import calendar 

def day_occur_time(year): 
    days = [ "Monday", "Tuesday", "Wednesday",   
           "Thursday",  "Friday", "Saturday",  
           "Sunday" ] 
    L = [52 for i in range(7)] 

    pos = -1
    day = datetime.datetime(year, month = 1, day = 1).strftime("%A") 
    for i in range(7): 
        if day == days[i]: 
            pos = i 
    if calendar.isleap(year): 
        L[pos] += 1
        L[(pos+1)%7] += 1       
    else: 
        L[pos] += 1

    for i in range(7): 
        print(days[i], L[i])

Write a python Program to Determine all Pythagorean Triplets in the Range

limit= 50
c=0
m=2
while(c<limit):
    for n in range(1,m+1):
        a=m*m-n*n
        b=2*m*n
        c=m*m+n*n
        if(c>limit):
            break
        if(a==0 or b==0 or c==0):
            break
        print(a,b,c)
    m=m+1

function to Convert Binary to Gray Code

def binarytogray(n): n = int(n, 2) n ^= (n >> 1) return bin(n)[2:]

### Write a Python function to Find the Intersection of Two Lists

def intersection(a, b): return list(set(a) & set(b)) ```