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MI
MIT OpenCourseWare
AW
AWS Certified
LC
LeetCode
Co
CompTIA
St
Stanford CS
Go
Google Tech Dev
HR
HackerRank
UC
UC Berkeley
Co
Coursera
fC
freeCodeCamp
CM
Carnegie Mellon
CF
Codeforces
Spring 2026 Cohort — 11 seats left

Timed mock exams modeled on real university papers. Line-by-line solution walkthroughs. Live cohorts that turn half-understood concepts into exam-day certainty.

4,200+
Students prepared
89%
Pass rate (Pro tier)
38
Universities covered
cohort_status.sh
// Next cohortMarch 10, 2026
// Seats remaining
11
// FormatLive + async
// Duration4 weeks intensive
Enroll Now
Step 01// Diagnose your gaps

Find out what you don't know before the exam does.

Our 20-minute diagnostic maps your knowledge across 8 core CS domains. You get a gap report. We get a starting point. No account required.

20 minutes, 25 adaptive questions
Domain-level gap report instantly
No signup — just your email for results
Start Free Diagnostic
diagnostic_preview.exeQ 1 / 25
Binary Trees · Depth-First SearchMedium

What is the time complexity of an in-order traversal of a binary tree with n nodes?

Confidence levelDecent
Full diagnostic: 25 questions across 8 domains
Step 02// Compare your options

See exactly what you're missing.

The gap between Free and Intensive isn't features — it's the difference between hoping and knowing.

Feature
Free
$0
forever
Taste the dojo
Start Free
Most Popular
Pro
$29
/month
For serious prep
Start Pro Trial
Intensive
$149
/cohort
Live + mentored
Reserve My Seat
Practice
Practice Problems50 problems800+ problems800+ problems
Timed Mock Exams2 per monthUnlimitedUnlimited
Exam Day Simulator
Adaptive Difficulty Engine
Solutions
Solution WalkthroughsBasic answersLine-by-lineLine-by-line
Video Explanations
Multiple Approach Comparisons
Progress
Gap Analysis ReportBasicFull domain mapFull domain map
Weakness Heatmap
Progress Benchmarking
Mentorship
Community Forum Access
Live Group Sessions
2 per monthWeekly
1-on-1 Office Hours
4 sessions
Dedicated Study Mentor

// Still deciding? The diagnostic shows you which tier you actually need.

Reserve My Seat — Spring 2026
Step 03// Commit to the work

Spring 2026 cohort starts in exactly:

March 10, 2026 · 9:00 AM EST · Live + async format

00
Days
00
Hours
00
Mins
00
Secs
Seats remaining11 / 30

// 19 of 30 seats claimed · cohort closes when full

// Intensive includes:

4 weeks of live exam-drill sessions
Unlimited mock exams with Exam Day Simulator
Line-by-line solution walkthroughs for every problem
4 x 1-on-1 office hours with a mentor
Dedicated study mentor for the cohort duration
Private cohort Discord + recorded session archive
reserve_seat.sh

Reserve My Seat

// Spring 2026 Intensive — $149 · 11 seats left

// 7-day money-back guarantee · Secure checkout

Not ready to commit?

Take the free diagnostic first — no credit card, no pressure.