Upwork interview questions

We have freelancers who specialize in making landing pages. Each of them needs 2 days to make a standard landing page and works 5 days per week. They accept 3 types of contracts: Type 1: Deliver a landing page in 2 work-weeks, for $300 USD Type 2: Deliver a landing page in 1 work-week, for $500 USD Type 3: Deliver a landing page in 3 work-days, for $1500 USD In all cases, the landing page may be delivered earlier, but not later than required by the contract type. Please implement the Freelancer class with 2 methods, as well as any supporting entities: Method 1: Freelancer::receiveContract(contractType) - If it's impossible to complete this contract, produce an error; - Else, accept this contract and return contract id; Method 2: Freelancer::workOnContract(contractId) - complete 1 day of work for the contract; - freelancer can only work on a contract if it doesn't prevent finishing another contract on time; - if the freelancer completed 2 days of work for the contract, that contract is finished and the landing page can be delivered to the client. Example (in pseudocode): receiveContract(Type3) > contract1 //has no commitments, so can complete this contract receiveContract(Type3) > error //already committed 2 days. remaining 1 day of dev time is not //enough to complete this contract receiveContract(Type1) > contract2 //only committed 2 days. remaining 8 days of dev time is enough //to complete this contract workOnContract(contract2) > increments day //now 2 days before “contract1” is due - 2 days of work, 7 days //before “contract2” is due - 1 day of work workOnContract(contract2) > error //there are only 2 days remaining before “contract1” is due - //2 days of work workOnContract(contract1) > increments day //now 1 day before “contract1” is due - 1 day of work, 6 days // before “contract2” is due - 1 day of work workOnContract(contract1) > completes contract1 //now 5 days before “contract2” is due - 1 day of work > increments day Bonus points: Support optionally marking a contract as “uninterruptable” - once the freelancer starts working on it, they have to work on it until completed. Support contract deadlines in calendar weeks, not work weeks. Take the current weekday into account.