DSA Tracker

DSA Interview Roadmap

Cloud Engineer

A Cloud Engineer interview leans on 201 of the 370 curated problems. The other 169 are lower frequency for this role — still here, just not first.

CIDR bitmask arithmetic, resource dependency DAGs, longest-prefix routing tries, and bin-packing greedy questions; latency-window problems are the SRE side, not this one.

Focus on
201
Core topics
7
Deprioritise
169
Full catalogue
370

Track your progress on this roadmap — the map fills itself as you solve.

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What this interview looks like

Cloud platform interviews test networking topology management, infrastructure resource provisioning, and security boundary validation. Candidates calculate subnetwork bitmask intervals, resolve infrastructure dependency graphs, and apply greedy resource bin-packing strategies. Demonstrating accurate CIDR routing lookups, resolving acyclic deployment graphs, and enforcing resource quota limits are essential.

What it leans away from

Dynamic programming matrices and deeply recursive pointer algorithms are ranked low because cloud control planes rely on structured configuration models and declarative states. Nevertheless, candidates interviewing for cloud hypervisor or software-defined networking teams may occasionally face low-level buffer management challenges.

The whole path

CoreRole-specificAdvanced
  1. Phase 1 - DSA Foundation
    Graph48Intervals5Bit Manipulation11Greedy15Trie9Arrays34Strings22
  2. Phase 2 - Role Skill Gaps
    Sorting7Heap13Binary Search16Math11Queue4Two Pointers6
  3. Phase 3 - Projects and Interview Proof
    Dynamic Programming51Binary Trees32BST20Linked List17Stack16Backtracking12Recursion7Matrix6Sliding Window8
1

Phase 1 - DSA Foundation

The curation places 7 core topics first for this role, leading with practice problems.

  1. 01GraphCore
    48 problemsVisualize
    Flood FillNumber of IslandsClone GraphCourse ScheduleRead the theory
  2. 02IntervalsCore
    5 problemsVisualize
    Meeting RoomsMerge IntervalsInsert IntervalNon-overlapping IntervalsRead the theory
  3. 03Bit ManipulationCore
    11 problemsVisualize
    Single NumberNumber of 1 BitsCounting BitsReverse BitsRead the theory
  4. 04GreedyCore
    15 problemsVisualize
    Assign CookiesLemonade ChangeN Meetings in One RoomJump Game (Greedy)Read the theory
  5. 05TrieCore
    9 problemsVisualize
    Implement Trie (Prefix Tree)Design Add and Search Words Data StructureMaximum XOR of Two Numbers in ArrayCount Distinct Substrings Using TrieRead the theory
  6. 06ArraysCore
    34 problemsVisualize
    Two SumMaximum and Minimum Element in an ArrayReverse the ArrayContains DuplicateRead the theory
  7. 07StringsCore
    22 problemsVisualize
    Valid PalindromeValid AnagramImplement strStr()Longest Common PrefixRead the theory
2

Phase 2 - Role Skill Gaps

The curation balances theory and practice equally across these role-specific topics to complete the 201 focus problems.

  1. 08SortingRole-specific
    7 problemsVisualize
    Read the theoryBubble SortSelection SortInsertion SortMerge Sort
  2. 09HeapRole-specific
    13 problemsVisualize
    Read the theoryKth Largest Element in a StreamLast Stone WeightK Closest Points to OriginTask Scheduler
  3. 10Binary SearchRole-specific
    16 problemsVisualize
    Read the theoryBinary SearchSearch Insert PositionSqrt(x)Lower Bound and Upper Bound
  4. 11MathRole-specific
    11 problemsVisualize
    Read the theoryGCD of Two NumbersPalindrome NumberExcel Sheet Column NumberHappy Number
  5. 12QueueRole-specific
    4 problemsVisualize
    Read the theoryImplement Queue using StacksImplement Stack using QueuesFirst Non-Repeating Character in StreamSliding Window Maximum
  6. 13Two PointersRole-specific
    6 problemsVisualize
    Read the theoryValid Palindrome IIMove ZeroesRemove Duplicates from Sorted ArraySquares of a Sorted Array
3

Phase 3 - Projects and Interview Proof

The curation pushes 169 problems down for this role, so understanding the theory is the goal here.

  1. 14Dynamic ProgrammingAdvanced
    51 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  2. 15Binary TreesAdvanced
    32 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  3. 16BSTAdvanced
    20 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  4. 17Linked ListAdvanced
    17 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  5. 18StackAdvanced
    16 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  6. 19BacktrackingAdvanced
    12 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  7. 20RecursionAdvanced
    7 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  8. 21MatrixAdvanced
    6 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems
  9. 22Sliding WindowAdvanced
    8 problemsVisualize
    Read the primerunderstanding is the goal here rather than grinding problems

Ready to actually walk this path?

Every topic above links to real problems, step-by-step pattern visualizers, and an in-browser compiler. Your progress tracks automatically as you solve.

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Cloud Engineer DSA questions, answered

How many DSA problems does a Cloud Engineer need to solve?

About 201 of the 370 curated problems. Those sit in the 7 topics a Cloud Engineer interview leans on; the remaining 169 are lower frequency for this role and are worth doing later rather than first.

Which DSA topics matter most for a Cloud Engineer?

Graph, Intervals, Bit Manipulation, Greedy, Trie, Arrays and others — the core tier for this role. Topic priority is mapped per role rather than shared, so a Cloud Engineer path deliberately differs from a generic sheet order.

Can a Cloud Engineer skip some DSA topics?

Deprioritise rather than skip. 169 of the 370 problems are lower frequency for a Cloud Engineer, so they belong after the core tier — not never, but not first. Interviews do occasionally reach outside the common ground.

Is this Cloud Engineer roadmap free?

Yes. The roadmap, the problem list, the pattern walkthroughs and progress tracking are all free with no signup required to read. Only AI-generated insights are metered.

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Problem set and role mapping as of .