Python Technical Interview Questions

 1)first non repeating character

Malayalam

y

programming

p

str = "MalayalaM"

a = '\0'

for c in str:

    if str.index(c) == str.rindex(c):

        a = c

        break

print(a)

2)

1

##

333

####

55555

for i in range(1, 6):

    for j in range(1, i+1):

        if i % 2 != 0:

            print(i, end='')

        else:

            print('#', end='')

    print()

3)

find two elements of array for given target sum

  a = {2, 11, 7, 15};

  target = 9;

output is

2,7

a = [2, 11, 7, 15]

target = 9

for i in range(len(a)):

 for j in range(i + 1, len(a)):

   if a[i] + a[j] == target:

    print(a[i],a[j])

4)union of two list

a=[1,2,3,4,5]

b=[3,2,6,7,8]

output

[1, 2, 3, 4, 5, 6, 7, 8]

a=[1,2,3,4,5]

b=[3,2,6,7,8]

set1=set(a)

set2=set(b)

set3=set1.union(set2)

print(set3)

5)intersection of two list

a=[1,2,3,4,5]

b=[3,2,6,7,8]

output

[2,3]

a=[1,2,3,4,5]

b=[3,2,6,7,8]

for i in range(len(a)):

    for j in range(i+1):

        if a[i] == b[j]:

            print(a[i])

6)Check if a String is a Palindrome

mam

reverse mam

a = "mam"

b = a[::-1]

if a == b:

    print("polindrome")

else:

    print("not polindrome")

7)remove duplicate in  name

input sabari

output sabri

a="sabari"

s=''.join(dict.fromkeys(a))

print(s)