Cisco Coding Interview Questions
30 Cisco coding interview problems with full optimal solutions — 6 easy, 22 medium, 2 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Cisco interviewer values, and a FAQ section.
Showing 1 problem of 30
- #332hardless common
332. Reconstruct Itinerary
Reconstruct Itinerary at Cisco is the Eulerian path problem — you must use every edge exactly once and return the path in lex-smallest order. The interviewer is checking whether you reach for Hierholzer's algorithm and whether you build the adjacency lists as sorted heaps or sorted arrays consumed back-to-front.
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