# Status Problem video Level Completes Likes 405 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1 Medium % 0 404 Find all the numbers in the range which has prime set bits. Beginner % 0 402 Check if Arithmetic Expression contains duplicate parenthesis Medium % 0 396 Optimizing Test Execution: Managing Test Dependencies for Sequential Order Medium % 0 394 Find the maximum number present in a String Beginner % 0 390 Convert Prefix to Postfix Expression Medium % 0 389 Convert Roman Number to Integer Beginner % 0 387 Convert Postfix to Prefix Expression Medium % 0 385 String to Integer (AtoI - ASCII to Integer) - Recursive Solution Medium % 0 384 Grouping of Anagrams Medium % 0 383 Print Processes and its messages from a given log file Medium % 0 378 Longest contiguous character in a given String - O(N) Solution Beginner % 0 377 Convert Postfix to Infix Expression Medium % 0 375 String to Integer (AtoI - ASCII to Integer) Beginner % 1 373 Longest substring with at most two unique characters Medium % 0 372 Monotone Increasing Digits - Leetcode Medium % 1 371 Convert Infix to Prefix Expression Medium % 0 369 Find duplicates Characters in the given String Beginner % 0 368 Max Flow Problem - Ford-Fulkerson Algorithm Hard % 0 367 Sum of all Unique elements in a given array Beginner % 0 365 Convert Infix to Postfix Expression Medium % 0 364 Find three smallest elements in a given array Beginner % 0 363 Evaluation of Infix expressions Medium % 0 361 Convert Prefix to Infix Expression Medium % 0 360 Least Recently Used (LRU) Cache – Using LinkedHashSet and Deque | Set 2 Hard % 0 359 Merge K sorted Linked List - Using Priority Queue Hard % 0 357 Count Set bits in a given Number Beginner % 1 355 Product of all Unique elements in a given array Beginner % 0 354 Valid Multiple Parentheses Medium % 1 352 Check if given number is perfect square - O(√N) Solution Beginner % 0 350 Find first three largest elements in a given array Beginner % 0 346 Valid Brackets – Part 2 | Stack Method Beginner % 0 342 Find two smallest elements in a given array Beginner % 0 340 Print all Unique elements in a given array Beginner % 0 338 Find Number of reverse pairs in an array Hard % 1 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1 Find all the numbers in the range which has prime set bits. Check if Arithmetic Expression contains duplicate parenthesis Optimizing Test Execution: Managing Test Dependencies for Sequential Order Find the maximum number present in a String Convert Prefix to Postfix Expression Convert Roman Number to Integer Convert Postfix to Prefix Expression String to Integer (AtoI - ASCII to Integer) - Recursive Solution Grouping of Anagrams Print Processes and its messages from a given log file Longest contiguous character in a given String - O(N) Solution Convert Postfix to Infix Expression String to Integer (AtoI - ASCII to Integer) Longest substring with at most two unique characters Monotone Increasing Digits - Leetcode Convert Infix to Prefix Expression Find duplicates Characters in the given String Max Flow Problem - Ford-Fulkerson Algorithm Sum of all Unique elements in a given array Convert Infix to Postfix Expression Find three smallest elements in a given array Evaluation of Infix expressions Convert Prefix to Infix Expression Least Recently Used (LRU) Cache – Using LinkedHashSet and Deque | Set 2 Merge K sorted Linked List - Using Priority Queue Count Set bits in a given Number Product of all Unique elements in a given array Valid Multiple Parentheses Check if given number is perfect square - O(√N) Solution Find first three largest elements in a given array Valid Brackets – Part 2 | Stack Method Find two smallest elements in a given array Print all Unique elements in a given array Find Number of reverse pairs in an array 1 2 3 4
