Strings

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1. 01 Valid Anagram Easy
2. 02 Group Anagrams Medium
3. 03 String to Integer (atoi) Medium
4. 04 Implement strStr() Easy
5. 05 Multiply Strings Medium
6. 06 Longest Palindrome Easy
7. 07 Add Binary Easy
8. 08 Find All Anagrams in a String Medium
9. 09 Roman to Integer Easy
10. 10 Integer to Roman Medium
11. 11 Reverse Words in a String Medium
12. 12 Zigzag Conversion Medium
13. 13 Find the Index of the First Occurrence in a String Easy
14. 14 Isomorphic Strings Easy
15. 15 Palindrome Number Easy
16. 16 Check if a String is Palindrome Easy
17. 17 Check if One String is a Rotation of Another Easy
18. 18 Check if Two Strings are Anagrams Easy
19. 19 Roman Number to Integer and Vice Versa Medium
20. 20 Implement atoi Medium
21. 21 Count and Say Medium
22. 22 Generate All Binary Strings Medium
23. 23 Longest String with All Prefixes Medium
24. 24 Reverse a String (Words Order) Easy
25. 25 Check if String is a Palindrome Easy
26. 26 Find Duplicate Characters in a String Easy
27. 27 Check if a String is Rotation of Another Easy
28. 28 Rabin-Karp Pattern Search Algorithm Hard
29. 29 KMP Pattern Matching Algorithm Hard
30. 30 Print All Palindromic Partitions of a String Medium
31. 31 Minimum number of operations required to make an array palindrome Medium
32. 32 Reverse a string Easy
33. 33 Check whether a string is a palindrome or not Easy
34. 34 Why strings are immutable in Java Easy
35. 35 Check whether one string is a rotation of another Easy
36. 36 Check whether a string is a valid shuffle of two strings Medium
37. 37 Count and Say problem Medium
38. 38 Rabin-Karp algorithm Hard
39. 39 KMP algorithm Hard
40. 40 Count occurrences of a given string in a 2D character array Medium
41. 41 Convert Roman numerals to decimal Easy
42. 42 Number of flips to make a binary string alternate Medium
43. 43 Find the first repeated word in a string Easy
44. 44 Generate all possible valid IP addresses from a given string Medium
45. 45 Find the smallest window that contains all characters of the string itself Hard
46. 46 Rearrange characters in a string so no two adjacent are same Medium
47. 47 Minimum characters to be added at front to make a string palindrome Hard
48. 48 Given a sequence of words, print all anagrams together Medium
49. 49 Find the smallest window in a string containing all characters of another string Hard
50. 50 String matching where one string contains wildcard characters Hard
51. 51 Transform one string to another using minimum number of given operations Hard
52. 52 Check if two given strings are isomorphic to each other Easy
53. 53 Reorganize a string so no two adjacent characters are the same Medium
54. 54 Rearrange characters in a string so no two adjacent are the same Medium
55. 55 LCS of three strings Hard
56. 56 Maximum difference of zeros and ones in a binary string Medium
57. 57 Find if a string is an interleaving of two other strings Hard