1) Add Two Numbers in Python
Input: num1 = 5, num2 = 3
Output: 8
Input: num1 = 13, num2 = 6
Output: 19
2) Python3 program to add two numbers
num1 = 15
num2 = 12
# Adding two nos
sum = num1 + num2
# printing values
print("Sum of", num1, "and", num2 , "is", sum)
3) Add Two Numbers with User Input
number1 = input("First number: ")
number2 = input("\nSecond number: ")
# Adding two numbers
# User might also enter float numbers
sum = float(number1) + float(number2)
# Display the sum
# will print value in float
print("The sum of {0} and {1} is {2}" .format(number1,
number2, sum))
4) Add Two Numbers in Python Using Function
#To define a function that take two integers
# and return the sum of those two numbers
def add(a,b):
return a+b
#initializing the variables
num1 = 10
num2 = 5
#function calling and store the result into sum_of_twonumbers
sum_of_twonumbers = add(num1,num2)
#To print the result
print("Sum of {0} and {1} is {2};" .format(num1,
num2, sum_of_twonumbers))
5) Add Two Numbers Using operator.add() Method
# Python3 program to add two numbers
num1 = 15
num2 = 12
# Adding two nos
import operator
su = operator.add(num1,num2)
# printing values
print("Sum of {0} and {1} is {2}" .format(num1,
num2, su))
6) Add Two Number Using Lambda Function
# Define a lambda function to add two numbers
add_numbers = lambda x, y: x + y
# Take input from the user
num1 = 1
num2 = 2
# Call the lambda function to add the two numbers
result = add_numbers(num1, num2)
# Print the result
print("The sum of", num1, "and", num2, "is", result)
7) Add Two Numbers Using Recursive Function
Define a recursive function to add two numbers
def add_numbers_recursive(x, y):
if y == 0:
return x
else:
return add_numbers_recursive(x + 1, y - 1)
# Take input from the user
num1 = 1
num2 = 2
# Call the recursive function to add the two numbers
result = add_numbers_recursive(num1, num2)
# Print the result
print("The sum of", num1, "and", num2, "is", result)
8) Python Program to Check Prime Number
# Program to check if a number is prime or not
num = 29
# To take input from the user
#num = int(input("Enter a number: "))
# define a flag variable
flag = False
if num == 1:
print(num, "is not a prime number")
elif num > 1:
# check for factors
for i in range(2, num):
if (num % i) == 0:
# if factor is found, set flag to True
flag = True
# break out of loop
break
# check if flag is True
if flag:
print(num, "is not a prime number")
else:
print(num, "is a prime number")
9) Example 2: Using a for...else statement
num = 407
# To take input from the user
#num = int(input("Enter a number: "))
if num == 1:
print(num, "is not a prime number")
elif num > 1:
# check for factors
for i in range(2,num):
if (num % i) == 0:
print(num,"is not a prime number")
print(i,"times",num//i,"is",num)
break
else:
print(num,"is a prime number")
# if input number is less than
# or equal to 1, it is not prime
else:
print(num,"is not a prime number")
10) Python Program to Find the Factors of a Number
# Python Program to find the factors of a number
# This function computes the factor of the argument passed
def print_factors(x):
print("The factors of",x,"are:")
for i in range(1, x + 1):
if x % i == 0:
print(i)
num = 320
Output
print_factors(num)
The factors of 320 are:
1
2
4
5
8
10
16
20
32
40
64
80
160
320
11) Python Program to Find Armstrong Number in an Interval
lwr = 100
uppr = 2000
for numb in range(lwr, uppe + 1):
# order of number
odr = len(str(numb))
# initialize sum
sum = 0
tem = numb
while tem > 0:
digit = tem % 10
sum += digit ** odr
tem //= 10
if numb == sum:
print("The Armstrong numbers are: ",numb)
The Armstrong numbers are:
153
370
371
407
1634
12) Fahrenheit to Celsius without Function
print("Enter Temperature in Fahrenheit: ")
fahren = float(input())
celi = (fahren-32)/1.8
print("\nEquivalent Temperature in Celsius: ", celi)
Output:
Enter Temperature in Fahrenheit:
98
Equivalent Temperature in Celsius
36.6666666666
13) Factorial Program in Python
import math
n = int (input (“Enter the number whose factorial you want to find: ”))
print (“The factorial of the number is: “)
print (math.factorial (n))
14) Write a program to calculate the factorial of a number in Python using FOR
loop.
Copy Code
n = int (input (“Enter a number: “))
factorial = 1
if n >= 1:
for i in range (1, n+1):
factorial = factorial *i
print (“Factorial of the given number is: “, factorial)
15) Write the Python program to calculate the factorial of a number using
recursion.
Copy Code
n = int (input (“Enter the number for which the factorial needs to be calculated: “)
def rec_fact (n):
if n == 1:
return n
elif n < 1:
return (“Wrong input”)
else:
return n*rec_fact (n-1)
print (rec_fact (n))
16) Python Program to Find the Sum of Natural Numbers
n = int (input (“Enter any natural number: “)
if n < 0:
print (“Wrong input. Please enter a positive number.”)
else:
sum = 0
while (n > 0):
sum +=n
n -=1
print (“The sum of the natural numbers is: “, sum)
Output:
Enter any natural number:
100
The sum of the natural numbers is 5500.
17) Alternative Method
n = int (input (“Enter any natural number: “)
if n < 0:
print (“Wrong input. Please enter a positive number.”)
else:
sum = n * (n+1) / 2
print (“The sum of the natural numbers is: “, sum)
18) Python Program to Find ASCII Value of Character
c = input (“Enter the number whose ASCII code needs to be found: “)
print (“The ASCII value of given character is”, ord (c ))
>>> chr (94)
‘a’
>>> chr (ord (‘S’) + 1)
‘T’
19) Python Program to Convert Decimal to Binary Using Recursion
def convertToBin(a):
if a > 1:
convertToBin(a//2)
print(a % 2,end = '')
# decimal number
d = 34
convertToBin(d)
print()
Output
100010
Let us consider 17 as the decimal number.
Step 1: When 17 is divided by 2, the remainder is one. Therefore, arr[0] = 1.
Step 2: Now we divide 17 by 2. New number is 17/2 = 8.
Step 3: When 8 is divided by 2, the remainder is zero. Therefore, arr[1] = 0.
Step 4: Divide 8 by 2. New number is 8/2 = 4.
Step 5: When 4 is divided by 2, the remainder is zero. Therefore, arr[2] = 0.
Step 6: Divide 4 by 2. New number is 4/2 = 2.
Step 7 : Remainder when 2 is divided by 2 is zero. Therefore, arr[3] = 0.
Step 8: Divide 2 by 2. New number is 2/2 = 1.
Step 9: When 1 is divided by 2, the remainder is 1. Therefore, arr[4] = 1.
Step 10: Divide 1 by 2. New number is 1/2 = 0.
Step 11: Since number becomes = 0. Now we consider the remainders in the reversed
order. Therefore the equivalent binary number is 10001.
What does 10101 mean in binary?
10101 is a binary number whose decimal representation is 21.
20) Python Program to Display Fibonacci Sequence Using Recursion
Source Code:
def FibRec(a):
if a <= 1:
return a
else:
return(FibRec(a-1) + FibRec(a-2))
aterms = int(input("Enter the terms? "))
if aterms <= 0:
print("Please enter a positive integer")
else:
print("Fibonacci sequence:")
for z in range(aterms):
print(FibRec(z))
Output:
Enter the terms?
5
01123
21) How do you write a Fibonacci Series for a loop in Python?
Source Code:
i=int(input("Enter the terms"))
first=0
second=1
if i<=0:
print("The requested series is
",first)
else:
print(first,second,end=" ")
for x in range(2,i):
n=first+second
print(n,end=" ")
first=second
second=n
Output: Enter the terms
1
2
22) Python Program to Count the Number of Each Vowel
def Check_Vow(string, vowels):
# The term "casefold" has been used to refer to a method of ignoring cases.
string = string.casefold()
count = {}.fromkeys(vowels, 0)
# To count the vowels
for character in string:
if character in count:
count[character] += 1
return count
# Driver Code
vowels = 'aeiou'
string = "Hi, I love eating ice cream and junk food"
print (Check_Vow(string, vowels))
Output:
{'a': 2, 'e':4 , 'i':2 , 'o':3 , 'u':1}
23) Is vowel function in Python?
l = input("Enter the character: ")
if l.lower() in ('a', 'e', 'i', 'o', 'u'):
print("Vowel")
elif l.upper() in ('A', 'E', 'I', 'O', 'U'):
print("Vowel")
else:
print("Consonant")
Output:
Enter the character
Vowel
ch = input("Enter the character : ")
if(ch == 'a' or ch == 'e' or ch == 'i' or ch == 'o' or ch == 'u' or ch == 'A' or ch == 'E' or ch
== 'I' or ch == 'O' or ch == 'U'):
print("Vowel")
else:
print("Consonant")
Output:
Enter the character:
Consonant
24) Python Multiplication Table using the for Loop
numb = int(input(" Enter a number : "))
# using the for loop to generate the multiplication tables
print("Table of: ")
for a in range(1,11):
print(num,'x',a,'=',num*a)
Output
Enter the number : 7
Multiplication Table of :
7x1=7
7 x 2 = 14
