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Rohit Kumar

Lv.3

@rkumar · joined Jun 2026

Pythonista. Writing editorials and helping folks debug.

Engineer at Zerodha Bhubaneswar 25 Following 3 Followers

Level 3 750 / 1000 XP · 250 to Level 4

25/115

Problems solved

72%

Acceptance · 43 subs

#73

Global rank · top 31%

2750

Total XP

0d

Current streak

555

MateCoins

43 submissions in the past year

Active days 23 Max streak 4d

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Solved problems

25 of 115

Easy 22/38

Medium 3/59

Hard 0/18

Languages

C++ 24 solved

JavaScript 1 solved

Python 1 solved

Skills

Array ×11 Hash Table ×8 String ×8 Math ×6 Sorting ×4 Two Pointers ×4 Bit Manipulation ×3 Dynamic Programming ×2 Prefix Sum ×2 Binary Search ×1 Divide and Conquer ×1 Sliding Window ×1

Badges

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⚔️ First Duel

🌐 Polyglot

🔨 Problem Crusher

🌡️ Getting Warm

🩸 First Blood

Solve more →

Valid Parentheses C++

5 days, 23 hours ago

Reverse String C++

1 week, 1 day ago

Intersection of Two Arrays C++

2 weeks, 1 day ago

Shortest Subarray With Sum ≥ Target C++

2 weeks, 1 day ago

Count Palindromic Substrings C++

2 weeks, 3 days ago

Isomorphic Strings C++

2 weeks, 4 days ago

Palindrome Number C++

3 weeks, 1 day ago

Third Distinct Maximum C++

3 weeks, 2 days ago

Valid Anagram

Compilation Error · C++

5 days, 2 hours ago

Valid Anagram

Wrong Answer · C++ · 0.35s

5 days, 2 hours ago

Valid Parentheses

Accepted · C++ · 0.58s

5 days, 23 hours ago

Valid Parentheses

Time Limit Exceeded · C++ · 0.84s

5 days, 23 hours ago

Find the Balance Index

Wrong Answer · C++ · 1.46s

Reverse String

Accepted · C++ · 0.49s

1 week, 1 day ago

Majority Element

Wrong Answer · C++ · 0.57s

1 week, 1 day ago

Majority Element

Time Limit Exceeded · C++ · 0.42s

1 week, 1 day ago

Intersection of Two Arrays

Accepted · C++ · 0.34s

2 weeks, 1 day ago

Shortest Subarray With Sum ≥ Target

Accepted · C++ · 0.08s

2 weeks, 1 day ago

Learning paths

Explore →

Arrays & Hashing Essentials 33%

Competitive Programming with C++ 0%

Sliding Window & Two Pointers 33%

Companies practiced

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C CRED 11 solved F Flipkart 9 solved A Amazon 8 solved W Walmart 6 solved A Apple 6 solved M Meta 5 solved A Atlassian 5 solved M Microsoft 4 solved

Certifications

Graph Algorithms Expert

Earned Oct 17, 2026 · Verify ↗

Dynamic Programming Expert

Earned Oct 16, 2026 · Verify ↗

DSA Intermediate Certificate

Earned Sep 5, 2026 · Verify ↗

DP Patterns Certified

Earned Sep 4, 2026 · Verify ↗

Competitive Programming Expert

Earned Aug 26, 2026 · Verify ↗

Data Structures & Algorithms Specialist

Earned Aug 6, 2026 · Verify ↗

Contest history

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CompileMate Monthly Challenge: November 2026

Nov 1, 2026

–

0 pts

CompileMate Weekly Contest 10

Oct 11, 2026

#48

300 pts

CompileMate Weekly Contest 9

Oct 4, 2026

#16

400 pts

CompileMate Weekly Contest 8

Sep 27, 2026

#20

600 pts

CompileMate Weekly Contest 6

Sep 13, 2026

#52

100 pts

CompileMate Weekly Contest 5

Sep 6, 2026

#25

200 pts