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Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

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Programming and DSA

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Programming and DSA

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Practice Compete Compiler
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irfan_iiitr

  • 4★irfan_iiitr
  •   India
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Rating Graph

No. of Contests Participated: 58
1823 (-10)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 181 (Rated)(2025-04-09 22:30:02)
Global Rank:   819
Cheated in:   

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None(None)
Global Rank:   0
Cheated in:   

Ratings System Update

(None)
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Contests (58)

Starters 71 Division 4 (Rated)

Perfect Trio

February Cook-Off 2023 Division 4 (Rated)

Battery Health, Netflix

Starters 77 Division 4 (Rated)

Tekken, Tom and Jerry Chase, Codechef Airlines

Starters 78 Division 4 (Rated)

Passing Marks, Candy Store, Good Turn

Starters 79 Division 4 (Rated)

Distinct Opposite Sums, Better Deal, Ageing

Starters 81 Division 4 (Unrated)

Divide Pages, Maximum Capacity, Sunny Day

Starters 82 Division 4 (Rated)

Reach Home, MIN To MAX, Candy Division

Starters 84 Division 4 (Rated)

Chef and Donation, Elections in Chefland, Max Binary, Melt Gold

Starters 85 Division 4 (Rated)

Efficient PAN Linking, Inside The Stadium, IPL Ticket Rush, Can Chef

Starters 86 Division 4 (Rated)

Cricket Match, Chef and Battery , CodeChef Learn Problem Solving

Starters 87 Division 4 (Rated)

Four Tickets, Buy Ten Packets, Return the Change, Existence

Starters 83 Division 4 (Rated)

Chef Eren, Budget of Technex, Couple Game

Starters 88 Division 4 (Rated)

Masterchef finals, Online or Offline, Largest and Second Largest

Starters 89 Division 4 (Rated)

Monopoly, Plus 2 or Minus 1, Parliament, DDMM or MMDD

Starters 90 Division 4 (Rated)

Learning SQL, AP Free Sequences, Printing Binary Array, Favourite Numbers

Starters 91 Division 3 (Rated)

Odd GCD Permutation, Blobby Volley Scores

Starters 92 Division 3 (Rated)

Rectangular Tiling, Distance Coloring, Dotify Playlist, Water Filling

Starters 94 Division 3 (Rated)

Gymkhana Election IIIT-A, CodeChef Streak

Starters 95 Division 3 (Rated)

Alt-Tab, Transfusion Chain, EVacuate to Moon

Starters 96 Division 3 (Rated)

Remove Multiples, Bells of Pilgrimage, Weeding

Starters 100 Division 3 (Rated)

Stamps 100, Trade Surplus, Chocolate Distribution

Starters 101 Division 3 (Rated)

Warrior Chef, Work Smarter, Not Harder, Lockpicking Chef

Starters 102 Division 3 (Rated)

Bit Play, Selling Insurance, Chef and Stocks

Starters 106 Division 3 (Rated)

Chef Fantasy 11, Playing with OR, Save People, Guess the winner!

August Long 2023 Division 3 (Unrated)

All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!

September Short 2023 Division 3 (Unrated)

Slow Start, Mixing Extraordinaire

Starters 118 Division 2 (Rated)

Subset GCD, Join States, Xorry 2, Xorry 1

Starters 120 Division 2 (Rated)

Find Permutation , Count Subarrays, Count Arrays, Sub or Swp

Starters 122 Division 2 (Rated)

Arya In Grid, Transformation Cost, Man of the Match

Starters 124 Division 2 (Rated)

Binary Parity, Table Strength, Swap and Unite

Starters 125 Division 2 (Rated)

Bucket Game, Fake Certificate, Binary Minimal

Starters 128 Division 2 (Rated)

Binary Substring, XOR And Multiply, MEXimize the Array

Starters 136 Division 2 ( Rated )

Sum of Modes, My First Geometry Problem

Starters 137 Division 2 (Rated)

Large Differences

Starters 139 Division 2 (Rated)

Sum of N, Maximum Distance Permutations, Destroying Bridges Part 2

Starters 140 Division 2 (Rated)

Make Permutation, Split Permutation, Trick Or Treat

Starters 141 Division 2 (Rated)

Redundant Array, Amphibian Escape

Starters 142 Division 2 (Rated)

Chef loves Pizza Chef loves halfs, Array Removal, Number Hunt

Starters 144 Division 2 (Rated)

Budget Allotment, Largest K

Starters 145 Division 2 (Rated)

Make Bob Win , Make My Array Equal

Starters 150 (Rated)

Equal Pairs (Hard), Find Multiset State, Equal Pairs (Easy)

Starters 152 (Rated)

Maximize Hamming Distance, Range Minimize

Starters 155 (Rated)

GCD to 1 (Easy), GCD to 1 (Hard), Replace With First

Starters 156 (Rated)

Partition Score, Even Numbers Hate

Starters 161 (Rated)

Temporary Temperature, Red-Blue Sort, One To Three, Two Cards

Starters 163 (Rated)

Nice Array, Minimum Types

Starters 164 (Rated)

Halloween Array, Construct Permutation, Swap and Flip

Starters 165 (Rated)

Reverse and Alternate, Stable Array, Bulk Discount

Starters 166 (Rated)

Distinct Power, Chefland Library

Starters 167 (Rated)

Lottery Tickets, Delete Not Equal

Starters 168 (Rated)

No Two Alike, Binary Removals, Make Odd

Starters 169 (Rated)

Hamming equivalent, Make K Most Frequent

Starters 170 (Rated)

Crazy Jumping Frogs, qUiRkY qUesTs (Easy), Monster Monster

Starters 171 (Rated)

Swish Game, White Wall, Volcanic Eruption

Starters 172 (Rated)

Transform String, Streak Star

Starters 173 (Rated upto < 2700)

Cool Subsequences, Time Penalty

Starters 174 (Rated)

Deletion and Difference

Starters 175 (Rated)

Alternate It!, Make same

Starters 179 (Rated)

Lost in the Fest!!, Station Allocation, Unlock The Safe, Can you reach

Starters 180 (Rated)

Shall we play a game, Array Operations, Huh, Easy

Starters 181 (Rated)

The Best Matrix, Flip Prefix, Find Outside Array

Total Problems Solved: 389

1823
(Div 2)
★★★★
CodeChef Rating (Highest Rating 1833)
  • 4675 Global Rank
  • 3872 Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Silver Badge

Problem Solver - Silver Badge

Received for solving 250 Problems

Daily Streak - Bronze Badge

Daily Streak - Bronze Badge

Received for maintaining a streak of 5 days

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