Problems

# Status Problem Level Completes Likes
1

Depth-First Search (DFS) in 2D Matrix/2D-Array - Iterative Solution

Beginner % 0
3

Sort a given stack - Using Recursion

Hard % 0
4

Evaluation of Prefix Expressions (Polish Notation) | Set 2

Medium % 0
5

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Medium % 0
6

Smallest Number after Removing K digits

Hard % 0
7

Reverse a Stack using recursion - In Place (Without using extra memory)

Hard % 0
8

Convert Prefix to Postfix Expression

Medium % 0
9

Sort a given stack - Using Temporary Stack

Medium % 0
10

Convert Postfix to Infix Expression

Medium % 0
11

Convert Infix to Prefix Expression

Medium % 0
12

Convert Infix to Postfix Expression

Medium % 0
13

Evaluation of Infix expressions

Medium % 0
14

Stack Java Class - Explained

Beginner % 0
15

Convert Prefix to Infix Expression

Medium % 0
16

Infix, Postfix and Prefix Notations/Expressions

Beginner % 0
17

Valid Multiple Parentheses

Medium % 0
18

Stack Data Structure – Introduction and Implementation

Beginner % 0
19

Reverse the given String using Stack

Beginner % 0
20

Implement Stack Using Linked List

Beginner % 0
21

Implement Queue Using Stacks

Medium % 0

Depth-First Search (DFS) in 2D Matrix/2D-Array - Iterative Solution

Sort a given stack - Using Recursion

Evaluation of Prefix Expressions (Polish Notation) | Set 2

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Smallest Number after Removing K digits

Reverse a Stack using recursion - In Place (Without using extra memory)

Convert Prefix to Postfix Expression

Sort a given stack - Using Temporary Stack

Convert Postfix to Infix Expression

Convert Infix to Prefix Expression

Convert Infix to Postfix Expression

Evaluation of Infix expressions

Stack Java Class - Explained

Convert Prefix to Infix Expression

Infix, Postfix and Prefix Notations/Expressions

Valid Multiple Parentheses

Stack Data Structure – Introduction and Implementation

Reverse the given String using Stack

Implement Stack Using Linked List

Implement Queue Using Stacks