Python Interview Coding Questions Python Interview Coding Questions

1. Write a program to find the lowest Missing number from the list

def missing_num(li):
    n=len(li)
    for i in range(1,n+1):
        if i not in li:
            return i
    return n+1
    
l=[1,4,6]
print("missing num: ",missing_num(l))

OUTPUT:

missing num:  2

2. Write a Program to print Fibonacci Series

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

# Input number of terms
terms = int(input("Enter n: "))

# Generate and print Fibonacci series for each term
for i in range(terms):
    print(fibonacci(i))

OUTPUT :

Enter n: 9
0
1
1
2
3
5
8
13
21

3. Determine whether the number is a prime or not ?

def prime(n):
    if n<=1:
        return False
    for i in range(2,int(n**0.5)+1):
        if n%i==0:
            return False
    return True
    
num=int(input("enter n: "))
if prime(num):
    print("prime number")
else:
    print("not a prime number")

OUTPUT :

enter n: 7
prime number

4. Program to count occurrence of elements from a list

li=[1,2,3,4,5,4,2,2,6]
count=dict()
for i in li:
    if i in count:
        count[i]+=1
    else:
        count[i]=1
print(count)

OUTPUT :

{1: 1, 2: 3, 3: 1, 4: 2, 5: 1, 6: 1}

=== Code Execution Successful ===

5 . Write a Program to check a number is Armstrong or not ?

num=(input("enter a number: "))
arms=0

for digit in num:
    arms = arms + pow(int(digit), len(num))
if int(num) == arms:
    print("its a armstrong number")
else:
    print("its not armstrong number")

OUTPUT :

enter a number: 153
its a armstrong number