Your AP CSP pathway

Choose a revision to a fictional school booking service using evidence from multiple user groups. Document a shared decision and a testable acceptance criterion.

Specify and trace a school-capacity message generator. Separate user purpose, inputs, processing, displayed output and internal state.

Compare a faulty threshold counter with its specification, isolate a defect and design tests that expose it.

Encode unsigned values at a stated bit width, decode by place value and explain overflow and sampling limits.

Account for every required byte and choose exact recovery or information loss for a purpose.

Clean a documented synthetic trip table, compare cleaning policies and qualify a transport claim. Work from the metadata before calculating.

Trace changing state and an arithmetic expression, and compare a destructive overwrite with a swap that preserves both originals.

Use an explicitly documented text interface, track intermediate strings and test boundaries without assuming another language’s substring conventions.

Translate an inclusive age requirement and positive-capacity requirement into a Boolean condition, then compare AND with a faulty OR.

Trace a decision inside each weather branch and enumerate all reachable paths in a fictional campus route model.

Follow a bounded trace of a decrementing counter and distinguish a reached stopping condition from an observation limit.

Compare two full-traversal counters with a first-match algorithm and justify a real equivalence rather than trusting a few matching runs.

Filter a fictional capacity list while retaining duplicates and order, then explain why list abstraction avoids one code path per club.

Find present and absent targets while explaining every interval discarded. Compare the measured comparison count with a linear scan.

Match three arguments by position, follow a returned value into a caller expression and design a test that exposes a swapped-argument bug.

Develop a reusable inclusive-range recommendation filter with a list parameter and two bounds; demonstrate that the parameters change behaviour.

Evaluate two fixed text-library implementations against a precise contract, then propose a replacement and compatibility tests.

Enumerate a finite random range and compare its exact probability with a supplied, reproducible trial stream. Explain why the observed frequency can differ.

Compare capacity policies under one arrival sequence, report both served and remaining demand, and critique the model before recommending a real change.

Compare exact operation counts for stated loop models as input grows; use the results to distinguish polynomial growth, practical limits and heuristics.

Investigate a restricted counter model and classify the strength of each observation without claiming to solve the general halting problem.

Deliver packets out of order, detect missing sequence numbers and explain the difference between a routing model and a reliable transport protocol.

Find all surviving simple paths in a fixed undirected network, compare link failures and explain what an added link can and cannot repair.

Assign independent tasks to workers, justify the finishing time and speedup, then test how communication overhead changes the result.

Evaluate a fictional first-come online booking service using stakeholder evidence, then compare benefits, harms and a targeted revision.

Evaluate four targeted interventions within a fixed fictional budget and distinguish device access from connectivity, language and skills.

Compare group error rates and overall accuracy in a fictional classifier. Evaluate a proposed mitigation without treating a group difference as proof of its cause.

Assess representation and the strength of corroboration in a fictional public-reporting system while keeping uncertainty visible.

Apply explicitly supplied fictional asset terms and distinguish permission, attribution and a separate consent purpose.

Match a threat to a safeguard, explain the mechanism and identify a remaining limitation. Minimise personal data rather than merely hiding its display.