# Status Problem video Level Completes Likes 296 Replace all vowels with next consonant in a given string Medium % 0 290 Reverse a String using Recursion Beginner % 0 288 Print maximum occurring character in a String Beginner % 0 263 Minimum Copy Paste Operations Medium % 0 259 Print all sub sequences of a given String Medium % 0 255 Print all substrings of a given string Medium % 0 252 Text Justification Problem (OR Word Wrap Problem) - Leetcode 68 Hard % 0 248 Remove Duplicates from a string | 4 Approaches Medium % 0 166 All N Length Strings from Given String of Length K Medium % 0 165 Generate all combinations of length N Hard % 0 161 The Word Break Problem Hard % 0 150 Sort Names by their Last Names Beginner % 0 126 Generate All Permutations of a String (Well-Ordered) Medium % 0 116 Generate All Balanced Parentheses Combinations (N Pairs) Medium % 1 58 Generate All String Permutations Hard % 0 26 Check if one string is Rotation of another string Beginner % 1 25 String Compression using count of repeated characters - Run Length Encoding Beginner % 0 24 Replace Spaces with '%20' Without Using Default Functions Medium % 0 23 Find Whether Two Strings are Permutation of each other Beginner % 1 14 Longest Shared Prefix Sequence in a String Medium % 0 11 Check If String has All Unique Characters Beginner % 0 9 Valid or Well Formed Parentheses | Part - 1 Medium % 0 Replace all vowels with next consonant in a given string Reverse a String using Recursion Print maximum occurring character in a String Minimum Copy Paste Operations Print all sub sequences of a given String Print all substrings of a given string Text Justification Problem (OR Word Wrap Problem) - Leetcode 68 Remove Duplicates from a string | 4 Approaches All N Length Strings from Given String of Length K Generate all combinations of length N The Word Break Problem Sort Names by their Last Names Generate All Permutations of a String (Well-Ordered) Generate All Balanced Parentheses Combinations (N Pairs) Generate All String Permutations Check if one string is Rotation of another string String Compression using count of repeated characters - Run Length Encoding Replace Spaces with '%20' Without Using Default Functions Find Whether Two Strings are Permutation of each other Longest Shared Prefix Sequence in a String Check If String has All Unique Characters Valid or Well Formed Parentheses | Part - 1 1 2