Paytm Coding Interview Questions: 11 Tagged Problems
11 coding problems tagged Paytm — 1 easy · 10 medium — with solutions in 13 languages. Plus a study plan by topic.
- Problems: 11
- By difficulty: 1 easy · 10 medium
- Languages: JavaScript, TypeScript, Python, Java, C++, C, C#, Go, Kotlin, Swift, Rust, PHP and Ruby
- Cost: Free on every plan; sign in to run and submit
11 problems the CodeKairo catalogue tags as commonly asked in Paytm's coding rounds — 1 easy and 10 medium, no hard ones — each judged by hidden tests in 13 languages. The most common topics among them are Arrays (10), Hash Table (3) and Counting (2). The tag is the catalogue's own annotation of where a problem tends to come up — not a list published by Paytm, which CodeKairo is not affiliated with.
Paytm study plan by topic
All 11 problems tagged Paytm, about 6 h 10 min of solving, grouped by technique in the order they build on each other — Counting, Two Pointers, Sliding Window and Prefix Sum and 4 more.
The plan
11 problems on Counting, Two Pointers, Sliding Window, Prefix Sum, Sorting, Simulation, Heap and Union Find, easiest first within each topic.
- Find Players With Zero or One Losses Medium
- Number of Zero-Filled Subarrays Medium
- Rearrange Array in Max/Min Form Medium
- Alternating Groups I Easy
- Longest Substring with At Most K Distinct Characters Medium
- Longest Subarray With Sum Zero Medium
- Find the Student That Will Replace the Chalk Medium
- Eliminate Maximum Number of Monsters Medium
- Watering Plants II Medium
- Maximal Score After Applying K Operations Medium
- Maximum Number of Fish in a Grid Medium
All problems tagged Paytm
Easy (1)
- Alternating Groups I Array, Sliding Window
Medium (10)
- Maximal Score After Applying K Operations Array, Greedy, Heap (Priority Queue)
- Maximum Number of Fish in a Grid Array, Matrix, Depth-First Search
- Eliminate Maximum Number of Monsters Array, Greedy, Sorting
- Find the Student That Will Replace the Chalk Array, Binary Search, Prefix Sum
- Longest Substring with At Most K Distinct Characters String, Hash Table, Sliding Window
- Watering Plants II Array, Two Pointers, Simulation
- Number of Zero-Filled Subarrays Array, Math, Counting
- Find Players With Zero or One Losses Hash Table, Array, Sorting
- Rearrange Array in Max/Min Form Array, Two Pointers
- Longest Subarray With Sum Zero Array, Hash Table, Prefix Sum
Topics Paytm asks most
- Arrays 10 problems
- Hash Table 3 problems
- Counting 2 problems
- Two Pointers 2 problems
- Sliding Window 2 problems
- Prefix Sum 2 problems
- Sorting 2 problems
- Simulation 2 problems
- Greedy 2 problems
- Strings 1 problem
- Math 1 problem
- Binary Search 1 problem