# Python program to check if the number is an Armstrong number or not
# abcd... = a**3 + b**3 + c**3 + d**3 + ...
num = int(input("Enter a number: "))
sum = 0
temp = num
while temp > 0:
digit = temp % 10
sum += digit ** 3
temp //= 10
if num == sum:
print(num,"is an Armstrong number")
else:
print(num,"is not an Armstrong number")
# Python program to check whether the given number is a perfect number or not
num = int(input("Enter a number : "))
sum = 0
for i in range (1,num):
if(num % i == 0):
sum = sum + i
if(sum == num):
print(num,"is a perfect number")
else:
print(num,"is not a perfect number")
for i in '10101':
print (i)
# Python program to check if a string is palindrome or not
str1 = input("Enter a string")
str2 = " "
for i in str1:
str2 = i+str2
print('Str2',str2)
if (str2 == str1):
print("String is a palindrome")
else:
print("String is not a palindrome")
#Input a number and check if the number is a prime or composite number
num = int(input("Enter any number : "))
if num > 1:
for i in range(2, num):
#print('num',num, end=' ')
#print('i',i)
if (num % i) == 0:
print(num, "is NOT a prime number")
break
else:
print(num, "is a PRIME number")
elif num == 0 or 1:
print(num, "is a neither prime NOR composite number")
else:
print(num, "is NOT a prime number it is a COMPOSITE number")
#Display the terms of a Fibonacci series
def fibonacci(n):
a=0
b=1
if n <= 0:
print("Incorrect input")
elif n == 1:
print (b)
else:
print (a)
print (b)
for i in range(2,n+1):
c=a+b
a=b
b=c
print (b, end= ' ')
num=int(input("Enter a number to which Fibonacci is to be generated"))
fibonacci(num)
# Python Program to find the L.C.M. of two input number
def compute_lcm(x, y):
#choose the greater number
if x > y:
greater = x
else:
greater = y
while(True):
if((greater % x == 0) and (greater % y == 0)):
lcm = greater
break
greater += 1
return lcm
#num1 =int(input("Enter first number "))
#num2 = int(input("Enter second number "))
print("The L.C.M. is", compute_lcm(num1, num2))
# Python Program to find the H.C.F. of two input number
def compute_hcf(x, y):
# choose the smaller number
if x > y:
smaller = y
else:
smaller = x
for i in range(1, smaller+1):
if((x % i == 0) and (y % i == 0)):
hcf = i
return hcf
num1 =int(input("Enter first number "))
num2 = int(input("Enter second number "))
print("The H.C.F. is", compute_hcf(num1, num2))
#Count and display the number of vowels, characters, digits, spaces in string
str = input('Enter the string : ')
vowels = 0
digits = 0
spaces = 0
ch=0
str = str.lower()
for i in range(0, len(str)):
if(str[i] == 'a' or str[i] == 'e' or str[i] == 'i' or str[i] == 'o' or str[i] == 'u' or str[i] == 'A' or str[i] == 'E' or str[i]
== 'I' or str[i] == 'O' or str[i] == 'U'):
vowels = vowels + 1
elif((str[i] >= 'a' and str[i] <= 'z')):
ch+= 1
elif ((str[i] == ' ')):
spaces+=1
elif ((str[i] >= '0' and str[i] <= '9')):
digits=digits + 1
print("Vowels :",vowels)
print('Digits: ', digits);
print('White spaces: ', spaces);
print ("Characters :",ch)
#program that displays the longest substring of given string having just the consonsnts
string=input('Enter a string ' )
length=len(string)
maxlength= 0
maxsub ='' #empty string
sub=''# empty string
lensub=0
for a in range(length):
if string[a] in 'aeiou' or string[a] in 'AEIOU':
if lensub > maxlength:
maxsub = sub
maxlength= lensub
sub =''
lensub = 0
else:
sub += string[a]
lensub =len(sub)
a+=1
print ("Maximum length consonant substring is" , maxsub, end =' ')
print ("with", maxlength, "characters")
#Write a program that reads a string and then prints a string that capitalizes every other letter in the
string e.g,
string= input( "Enter a string:")
length= len (string)
print(length)
print ("Original string : ", string)
string2= "" # empty string
for a in range (0, length, 2):
string2 += string[a]
if a < (length-1):
string2 += string[a+1].upper()
print ("Alternatively capitalized string", string2)
#Program to perform Arithmetic operations
print("1. Sum of two numbers")
print("2. Subtraction of two numbers")
print("3. Multiplication of two numbers")
print("4. Division of two numbers")
choice=int(input('Enter your choice'))
if choice==1 :
a=int(input('Enter first number'))
b=int(input('Enter second number'))
c=a+b
print("Sum=",c)
elif choice==2 :
a=int(input('Enter first number'))
b=int(input('Enter second number'))
c=a-b
print("Subtraction=",c)
elif choice==3 :
a=int(input('Enter first number'))
b=int(input('Enter second number'))
c=a*b
print("Multiplication=",c)
elif choice==4 :
a=int(input('Enter first number'))
b=int(input('Enter second number'))
c=a/b
print("Division=",c)
else :
print("Wrong choice")
#Program to display grade by taking input of marks.
marks=int(input("Enter marks of the student :"))
if marks > 90:
print("You grade is 'A1' ")
elif marks > 80 and marks <=90:
print("You grade is 'A2' ")
elif marks > 70 and marks <=80:
print("You grade is 'B1' ")
elif marks > 60 and marks <=70:
print("You grade is 'B2' ")
elif marks > 50 and marks <=60:
print("You grade is 'C1' ")
elif marks > 40 and marks <=50:
print("You grade is 'C2' ")
elif marks > 30 and marks <=40:
print("You grade is 'D' ")
elif marks > 20 and marks <=30:
print("You grade is 'E1' ")
elif marks > 0 and marks <=20:
print("You grade is 'E2' ")
#Program to find factorial of the entered number.
num = int(input("Enter the number for calculating its factorial : "))
fact = 1
i=1
while i<=num:
fact = fact*i
i=i+1
print("The factorial of ",num,"=",fact)
