HTTP/2 200
date: Sun, 12 Oct 2025 06:46:09 GMT
content-type: text/html; charset=utf-8
content-encoding: gzip
cache-control: public, max-age=86400
referrer-policy: strict-origin-when-cross-origin
x-app-version: v251008-h-251010-1202
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
x-middleware-rewrite: /coursesv2/data-structures-coding-interviews-java/challenge-graph-valid-tree
vary: RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-Encoding
x-nextjs-cache: HIT
etag: W/"as8o1q24zy7we0"
x-cloud-trace-context: ced514e4111601ffe1dbb69286773e27
via: 1.1 google
alt-svc: h3=":443"; ma=86400
cf-cache-status: HIT
age: 23209
set-cookie: __cf_bm=D.pwC.EaffNTbONyT6ExpIOIYs2RCmA_ENbgk3tnfYQ-1760251569-1.0.1.1-2kv9Lzvj3lG2oGM7svBJcadKkwWznl_8UIeuVgtpbZ0SZ3CCEnRkLhZ1zrdZiSTTrl7Zx8ztxbPc3zbN_xti3.QDxx0NZ2qXXtknKc9iQuY; path=/; expires=Sun, 12-Oct-25 07:16:09 GMT; domain=.educative.io; HttpOnly; Secure; SameSite=None
strict-transport-security: max-age=31536000; includeSubDomains; preload
server: cloudflare
cf-ray: 98d4a372aafdc151-BLR
Challenge: Graph Valid TreeChallenge: Graph Valid Tree
Challenge: Graph Valid Tree
Try to solve the Graph Valid Tree problem.
We'll cover the following...