1

Remove outermost Paranthesis

2

Reverse words in a given string / Palindrome Check

3

Largest odd number in a string

4

Longest Common Prefix

5

Isomorphic String

6

check whether one string is a rotation of another

7

Check if two strings are anagram of each other

1

Sort Characters by frequency

2

Maximum Nesting Depth of Paranthesis

3

Roman Number to Integer and vice versa

4

Implement Atoi

5

Count Number of Substrings

6

Longest Palindromic Substring[Do it without DP]

7

Sum of Beauty of all substring

8

Reverse Every Word in A String