# Radib Kar

## Technical Content Writer @ IncludeHelp

Name | Radib Kar |

Course | Bachelor of Engineering (B.E), Computer Science & Eng. |

College | Jadavpur University |

Technical skills | C, C++, Java, JavaScript, MATLAB, HTML, CSS |

### His submissions

**Data Structure**

- Implementation of Queue using two Stacks
- Implementation of Stack using two Queues
- Level Order Traversal on a Binary Tree | Data Structure
- Find the number of leaf nodes in a Binary Tree | Data Structure
- Find whether two trees are structurally identical or not | Data Structure
- Introduction to Linked List
- Single Linked list and its basic operations with traversing implementation
- Single linked list insertion
- Single linked list deletion
- Deleting a node from a linked list without head pointer

**C, C++**

- Queue in C++ Standard Template Library (STL)
- C++ program Input list of candidates and find winner of the Election based on received votes
- C++ program of Airline Seat Reservation Problem
- C++ STL sort function to sort an array or vector
- <bits/stdc++.h> as header file in C++
- C program to find second largest elements in a one dimensional array
- C program to find two largest elements in a one dimensional array
- C program to find second smallest element in a one dimensional array
- C program to find two smallest elements in a one dimensional array
- C Program to Cyclically Permute the Elements of an Array
- C program to accept Sorted Array and do Search using Binary Search
- C Program to find the Biggest Number in an Array of Numbers using Recursion
- C++ program to Sort Names in an Alphabetical Order
- C++ program to print all the Repeated Numbers with Frequency in an Array
- C++ program to print all the Non-repeated Numbers in an Array
- Bitwise Operators and their working with Examples in C
- C program to find the Highest Bit Set for any given Integer
- C program to check if all the bits of a given integer is one (1)
- C program to count number of bits set to 1 in an Integer
- C program to display a Linked List in Reverse
- C program to check whether a given number is palindrome or not using Bitwise Operator
- C program to Reverse only First N Elements of a Linked List
- C program to find odd or even number using bitmasking
- C program to replace bit in an integer at a specified position from another integer
- C program to swap two Integers using Bitwise Operators
- C program to Check if nth Bit in a 32-bit Integer is set or not
- Merge sort for single linked lists
- C++ program to find Union of two single Linked Lists
- Find intersection of two linked lists using C++ program
- C program to convert a Binary Tree into a Singly Linked List by Traversing Level by Level
- Stack in C++ STL (Standard Template Library)
- stack::push() function in C++ STL
- stack::pop() function in C++ STL
- stack::top() function in C++ STL
- stack::size() function in C++ STL
- stack::empty() function in C++ STL
- set::size() function in C++ STL
- set::erase() function in C++ STL
- set::insert() function in C++ STL
- set::empty() function in C++ STL
- set::emplace() function in C++ STL
- set::clear() function in C++ STL
- set::lower_bound() function in C++ STL
- set::upper_bound() function in C++ STL
- set::find() function in C++ STL
- Set in C++ STL (Standard Template Library)
- How to convert an integer to string in C++ STL?
- String::length() Function with Example in C++ STL
- How to convert a character to string in C++ STL?
- Accessing character elements from a string in C++ STL
- Comparing two string using comparison operators in C++ STL
- Concatenating two string using + (plus) operator in C++ STL
- std::string in C++ STL (Standard Template Library)

**Algorithms**

- Given an array of n numbers, Check whether there is any duplicate or not
- Finding the missing number
- Find the number occurring an odd number of times
- Find the pair whose sum is closest to zero in minimum time complexity
- Find three elements in an array such that their sum is equal to given element K
- Bitonic Search Algorithm
- Check whether a number is Fibonacci or not
- Segregate even and odd numbers in minimum time complexity
- Find trailing zeros in factorial of a number
- Find Nearest Greatest Neighbours of each element in an array
- Interpolation search algorithm
- Analysis of LRU page replacement algorithm and Belady's anomaly

**Interview coding problems/challenges **

- Run-length encoding (find/print frequency of letters in a string)
- Sort an array of 0's, 1's and 2's in linear time complexity
- Checking Anagrams (check whether two string is anagrams or not)
- Relative sorting algorithm
- Finding subarray with given sum
- Find the level in a binary tree with given sum K
- Check whether a Binary Tree is BST (Binary Search Tree) or not
- 1[0]1 Pattern Count
- Capitalize first and last letter of each word in a line
- Print vertical sum of a binary tree
- Print Boundary Sum of a Binary Tree
- Reverse a single linked list
- Greedy Strategy to solve major algorithm problems
- Job sequencing problem
- Root to leaf Path Sum
- Exit Point in a Matrix
- Find length of loop in a linked list
- Toppers of Class
- Print All Nodes that don't have Sibling
- Transform to Sum Tree
- Shortest Source to Destination Path
- Check for Valid Sudoku
- Count and Say sequence
- Longest Common Prefix
- Palindrome Linked List
- Symmetric Tree
- Convert Sorted Array to Binary Search Tree
- Finding First Bad Version
- House Robber
- Odd even level difference in a binary tree
- Maximum value in a bitonic array
- Palindromic Array
- Check if Tree is Isomorphic
- Count Substrings
- Expression Tree
- K distance from root
- Right View of Binary Tree
- Number following the pattern
- Diameter of Binary Tree
- Intersection Point in Y-Shaped Linked List
- Delete nodes greater than or equal to k in a BST
- Next Permutation
- Reverse Level Order Traversal
- Diagonal Traversal of Binary Tree
- Leftmost and Rightmost Nodes of Binary Tree
- Lowest Common Ancestor in a BST
- Generate Gray Code Sequences
- Convert Ternary Expression to Binary Tree
- Count of strings that can be formed using a, b and c under given constraints
- Bottom View of Binary Tree
- Minimum Number of Flips
- Picking Numbers
- Count Occurrences of Anagrams
- Sieve of Eratosthenes
- Largest Fibonacci Subsequence
- Rearrange a string
- Coin Change
- Ancestors in Binary Tree
- All Root to Leaf Paths
- Pairs of songs with total durations divisible by 60
- Sum of all numbers formed by root to leaf path
- Game of XOR
- Print bracket number
- Longest Palindromic Subsequence
- Prisoners and the poison
- K-th smallest element in a Binary Search Tree
- Find nth Magic number
- Level order traversal in spiral form
- Absolute sorting on a single linked list

**Computer Networks**

- Multiple Access Protocol | Computer Networks
- Random Access methods | Multiple Access protocols | Computer Networks
- Aloha: A random access method of multiple access | Computer Networks
- Carrier Sense Multiple Access (CSMA) | Computer Networks
- FDMA and TDMA: Channelization Processes | Computer Networks
- Code-Division Multiple Access (CDMA) | Computer Networks
- Logical addressing: IPV4 addressing | Computer Networks
- Classful and Classless Addressing: IPV4 addressing | Computer Networks
- Subnetting and Supernetting | Computer Networks
- Network Address Translation | Computer Networks

**Articles**

TOP Interview Coding Problems/Challenges

- Run-length encoding (find/print frequency of letters in a string)
- Sort an array of 0's, 1's and 2's in linear time complexity
- Checking Anagrams (check whether two string is anagrams or not)
- Relative sorting algorithm
- Finding subarray with given sum
- Find the level in a binary tree with given sum K
- Check whether a Binary Tree is BST (Binary Search Tree) or not
- 1[0]1 Pattern Count
- Capitalize first and last letter of each word in a line
- Print vertical sum of a binary tree
- Print Boundary Sum of a Binary Tree
- Reverse a single linked list
- Greedy Strategy to solve major algorithm problems
- Job sequencing problem
- Root to leaf Path Sum
- Exit Point in a Matrix
- Find length of loop in a linked list
- Toppers of Class
- Print All Nodes that don't have Sibling
- Transform to Sum Tree
- Shortest Source to Destination Path

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