Screen C++ candidates on real starter repos

C++

Standard~3h

Convert an encoded payload, represented as a sequence of symbol values in one radix, to any other radix.

C++

Starter~2h

You are building a roster system for a developer training academy. Participants are assigned to numbered cohorts based on their experience track. The program coordinator needs to view participants grouped by cohort, with each cohort's list sorted alphabeticall…

C++

Starter~2h

You are writing a decoder for a legacy industrial robot controller. The controller receives a continuous stream of 3-character instruction codes. Each triplet maps to a named operation. If a HALT code appears, execution stops immediately.

C++

Starter~2h

You are working on a small internal tool that compares two configuration snapshots.

C++

Starter~2h

You are cleaning imported contact records before they are saved into a CRM. Each record includes a freeform phone field entered by a human, so the data can contain spaces, dots, parentheses, hyphens, and an optional leading country code of 1.

C++

Starter~2h

A maritime signal station transmits messages using a sequence of signal flags. A numeric transmission code determines which flags to raise and in what order.

C++

Starter~2h

Implement a steps function that computes how many cascade steps a hailstone particle takes to reach unit mass.

C++

Standard~3h

Implement the response logic for a basic help-desk chatbot. The bot handles incoming support messages and replies with one of five canned responses based on the message content.

C++

Advanced~4h

An invoicing system needs to print amounts in words on official documents. Given an integer from 0 to 999,999,999,999, return its English representation.

C++

Starter~2h

Build a reverse-lookup priority index from a grouped priority table. Internal operations tools often store alert or diagnostic codes grouped by priority tier. A legacy configuration maps each integer priority to a set of uppercase codes that share that priorit…

C++

Starter~2h

A product team tracks how quickly a release ages across several cadence tiers. Given an age in seconds, calculate how old that release would be on:

C++

Advanced~4h

Generate a cumulative eight-verse incident ballad about an on-call engineer restarting systems.

C++

Standard~3h

You are auditing a service's observability configuration. Each service carries a single numeric score that encodes which sensitivity levels are currently active.

C++

Standard~3h

Implement a ShiftClock that represents a time-of-day on a 24-hour schedule, without any date component.

C++

Advanced~4h

A monitoring console stores outgoing alert messages in a compact columnar format called a signal weave.

C++

Starter~2h

A support dashboard turns certain factors into status signals. The rules of status-signals are that if a given number:

C++

Starter~2h

You are building a diagnostic tool for a network traffic monitor. The monitor records packet counts across 64 consecutive time slots. Due to a burst pattern, the number of packets in each slot is exactly double the previous slot, starting with 1 packet in the…

C++

Standard~3h

Implement a warehouse rover controller. A fulfillment center uses autonomous rovers to fetch items from shelving aisles. Before deploying a rover to the floor, the control software needs to verify that movement commands produce the expected outcomes.

C++

Standard~2h

You are building a patrol planning tool for a network of watchtowers on an 8×8 observation grid.

C++

Standard~3h

Implement a wave signal mixer that models two-component signals. In signal processing, a wave can be represented by two components: an in-phase component (real) and a quadrature component (imaginary).