Python programming

def fibonacci(n):
if n == 1 or n == 2:
return 1
else:
return fibonacci(n-1) + fibonacci(n-2)

n = int(input(“Enter n: “))
print(“Fibonacci number:”, fibonacci(n))

def reverse_string(s):
if len(s) % 4 == 0:
return s[::-1]
else:
return s

print(reverse_string(“abcd”))
print(reverse_string(“python”))

data = [(“apple”, 2), (“banana”, 3), (“apple”, 4)]
result = {}

for key, value in data:
result[key] = result.get(key, 0) + value

print(result)

t1 = (1, 2, 3)
t2 = (‘a’, ‘b’, ‘c’)

paired = list(zip(t1, t2))
print(paired)

words = (“apple”, “banana”, “orange”, “grape”, “mango”)
new_tuple = tuple(word for word in words if word.endswith(‘e’))

print(new_tuple)

class Student:
def __init__(self, roll, marks):
self.roll = roll
self.marks = marks

def check_pass(self):
if self.marks >= 40:
return “Passed”
else:
return “Failed”

s1 = Student(1, 55)
print(s1.check_pass())

sentence = “python is fun and python is powerful”
words = sentence.split()
count = {}

for word in words:
count[word] = count.get(word, 0) + 1

print(count)

def find_max(numbers):
return max(numbers)

print(find_max([10, 25, 5, 40, 15]))

class Employee:
def __init__(self, id, salary):
self.id = id
self.salary = salary

class SalesEmployee(Employee):
def __init__(self, id, salary, sales):
super().__init__(id, salary)
self.sales = sales

se = SalesEmployee(101, 30000, 5000)
print(se.id, se.salary, se.sales)