Code RoomStrongly connected components count
HardPrep Room Coding #1304

Strongly connected components count

CodingAlgorithms & data structuresSenior–Staff~40 min

A microservice mesh has n services (0..n-1) and directed `edges` `[a, b]` meaning a can call b. A 'mutual cluster' is a maximal set of services in which every service can reach every other (directly or transitively). Return the number of mutual clusters. A single service with no cycle through it is its own cluster of size 1.

Implement
count_mutual_clusters(n: int, edges: list[list[int]]) → int
Examples
in[5,[[0,1],[1,2],[2,0],[2,3],[3,4]]]out3
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 40 min
InputExpectedGot
[5,[[0,1],[1,2],[2,0],[2,3],[3,4]]]3not run yetsample