Competitive Coding

What?

This repository contains my (ongoing) journey of Competitive Coding. It starts from when I stopped using Turbo C++ and tried to wrap my head around Binary Search. This has probably been the most active repository throughout my engineering journey.

Why keep this?

For the same reason people write a diary/blog. It's like maintaining a photo album. You don't know if you'll ever need it, but it's nice to keep memories.

🦹🏻‍♂️ PROFILES

Website	Profile	# Problems Solved
LeetCode	126ankush	46
CodeChef	ankushgarg1998	103
InterviewBit	ankushgarg1998	77
CodeForces	SarcasticGeek	42
SPOJ	ankushgarg1998	20

⚔️ ANNUAL CONTESTS

ACM ICPC

YEAR: 2018 (The Lannisters)

Year	Round	Ranks
2018	Online Qualifier	AIR: #404, College Rank: #1
2018	Regionals: Kolkata-Kanpur Site	AIR: #55
2018	Regionals: Amritapuri Site	AIR: #211

Codechef Snackdown

YEAR: 2018 (The Lannisters), YEAR: 2017 (Radon)

Year	Round	Global Rank	Result
2018	Qualifier	#1	✔️ Qualified
2018	Round 1-A	#1	✔️ Qualified
2018	Pre Elimination Round	#896	➖ Eliminated
2017	Qualifier	#3101	✔️ Qualified
2017	Round 1-A	#3887	➖ Not Qualified
2017	Round 1-B	#1764	➖ Eliminated

Facebook Hacker Cup

Year	Round	Global Rank	Result
2018	Qualifier	#769	✔️ Qualified
2018	Round 1	#1989	✔️ Qualified
2018	Round 2	#412	➖ Eliminiated. 🔥 But won a T-Shirt for being in top 500.

Google Code Jam

Year	Round	Global Rank	Result
2019	Qualifier	#3869	✔️ Qualified
2018	Qualifier	#6251	✔️ Qualified
2018	Round 1-A	#4146	➖ Not Qualified
2018	Round 1-C	#1473	✔️ Qualified
2018	Round 2	#2296	➖ Eliminated
2017	Qualifier	#8372	✔️ Qualified
2017	Round 1		➖ Eliminated

IEEE Xtreme

YEAR: 2019 (HustleFluff), YEAR: 2018 (HustleFluff)

Year	Global Rank	All India Rank
2019	#276	#26
2018	#469	#44

InterviewBit CodersBit

Year	Round	Rank
2019	College Round	College Rank: #2
2018	College Round	College Rank: #2
2018	Finale	AIR: #373

Other Contests

• CodeChef
• CodeForces

👨🏻‍💻 PRACTICE WEBSITES

SPOJ

• ANARC09A
• BAISED
• BALIFE
• FARIDA
• FAVDICE
• GSS1
• HISTOGRA
• INVCNT
• JNEXT
• MMASS
• MMMGAME
• ONP
• PRATA
• HOLI
• QCJ3
• STPAR
• UPDATEIT

InterviewBit

• ARRAYS
  • First Missing Integer
  • Largest Number
  • Maximum Non-negative Subarray
  • Maxsprod
  • Merge Intervals
  • Merge Overlapping Intervals
  • Min steps in infinite grid
  • Noble Integer
  • Set matrix Zeroes
• Strings
  • Amazing Subarrays
  • Length of the last word
  • Longest palindrome
  • Longest Palindromic Substring
  • Min chars required to make a string palindrome
  • Palindrome String
  • Roman to integer
  • Zig Zag String
• Maths
  • Excel Column Number
  • Greatest Common Divisor
  • Grid Unique Paths
  • Number of Length N and value less than K
  • Palindrome Integer
  • Prime Sum
  • Rearrange Array
• Binary Search
  • Matrix Search
  • Power Function
  • Rotated Sorted Array Search
  • Square Root of Integer
• Two Pointers
  • 3 Sum
  • Max Continuous Series of 1s
  • Merge two sorted Lists
  • Minimize the absolute difference
  • Remove duplication from Sorted Array
• Bit Manipulation
  • Min XOR Value
  • Number of 1 Bits
  • Single Number 1
  • Single Number 2
• Linked List
  • List Cycle
  • Partition List
  • Remove Duplicates of sorted list
  • Reverse Linked List II
  • Reverse Linked List
  • Swap List Nodes in pairs
• Stacks and Queues
  • Evaluate Expressions
  • Min Stack
  • Nearest Smaller Element
  • Simplify Directory Path
• Backtracking
  • Gray Code
  • Letter Phone
  • N Queens
  • Permutations
  • Subset II
  • Subset
• Hashing
  • Anagrams
  • Colorful Number
  • Fraction
  • Longest Substring Without Repeat
  • Substring Concatenation
• Jumps
  • To Level 3

CodeChef CCDSAP

Foundation

• Arrays
  • RAINBOWA
  • COPS
• Strings
  • CSUB
  • LAPIN
• Stacks & Queues
  • JNEXT
  • STPAR
  • ONP
  • COMPILER
  • HISTOGRA
  • ANARC09A (SPOJ)
  • Minimal String (Codeforces)
  • Alternating Current (Codeforces)
  • Longest Regular Bracket Sequence (Codeforces)
• Recursion
  • NOKIA
  • TRISQ
  • LFSTACK
  • FICE
• Greedy Algorithms
  • TACHSTCK
  • CIELRCPT
  • MAXDIFF
  • CHEFST
  • CAKEDOOM
  • CLETAB
  • TADELIVE
  • MANYCHEF
  • MMPROD
  • CHEFTMA
  • STICKS
  • BAISED (SPOJ)
  • BALIFE (SPOJ)
  • GCJ101BB (SPOJ)
  • FGFS
  • LEMUSIC
  • ARRANGE (SPOJ)
• Dynamic Programming
  • ALTARAY
  • DELISH
  • DBOY
  • XORSUB
  • GRID
  • TADELIVE
  • FROGV
  • MATRIX2
• Binary Search
  • STRSUB
  • ASHIGIFT
  • STACKS
  • DIVSET
  • LOWSUM
  • SNTEMPLE
  • SNAKEEAT
  • SCHEDULE
  • FORESTGA

Data Structures and Algorithms

• Binary Indexed Tree (Fenwick Tree)
• Game Theory
• Graphs
• Linked Lists
  • linked_list
  • stack
• Mathematics
  • assignment_problem
• Recursion
  • factorial
  • fibonacci
  • gcd
  • nqueen
  • string_permutation
  • tower_of_hanoi
• Searching
  • linear_search
  • binary_search
• Segment Trees
  • segment_trees
  • lazy_propagation
• Sorting
  • merge_sort
  • quick_sort
• Trie
  • trie

LeetCode