In [1]:
#Fibonacci series

num = int(input("Enter a number "))
n1 = 0
n2= 1
print("Fibonacci series", n1,n2,end =  " ")
for i in range(2,num):
    n3=n1+n2
    n1=n2
    n2=n3
    print(n3,end=" ")

Enter a number 10
Fibonacci series 0 1 1 2 3 5 8 13 21 34
In [2]:
#Armstrong number

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 a Armstrong number")
else:
    print(num, "is not a Armstrong number")

Enter a number 153
153 is a Armstrong number
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In [4]:
#Assignment three

#longest word

def longest_word(words_list):
    word_len = []
    for n in words_list:
        word_len.append((len(n), n))
    word_len.sort()
    return word_len[-1][0],word_len[-1][1]
result = longest_word(["PHP","Exercises","Backend"])
print("\nLongest word",[1])
print("Length of Longest word",result[0])


def find_longest_word(words_list):
    word_len = []
    for n in words_list:
        word_len.append((len(n), n))
    word_len.sort()
    return word_len[-1][0], word_len[-1][1]
result = find_longest_word(["PHP", "Exercises", "Backend"])
print("\nLongest word: ",result[1])
print("Length of the longest word: ",result[0])

Longest word [1]
Length of Longest word 9

Longest word:  Exercises
Length of the longest word:  9
In [5]:
#sort of lexicographical

def lexico_sort(s):
    return sorted(sorted(s))

print(lexico_sort('python'))

['h', 'n', 'o', 'p', 't', 'y']
In [16]:
#Remove spaces from string

string = "Python is programming Language"

nospaces = string.replace(" ","")

print(nospaces)

PythonisprogrammingLanguage
In [11]:
def remove(string,n):
    first = string[:n]
    last = string[n+1:]
    return  first+last

string = input("Enter a string: ")
n= int(input("Enter the index of character to remove:"))
print("Modified string is: ")
print(remove(string,n))

Enter a string: hello
Enter the index of character to remove3
Modified string:
helo
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