Interview Question Explanation

question.md

Create a data structure that will implement the below interface.

Plan { planId: string; planType: string; planYear: int; planName: string; }

addPlan(Plan plan)

getPlan(string planId)

getAllPlans()

getPlansCount()

getPlansForYear(int year)

getPlansCountByYear(int year)

getPlansForType(string planType)

removePlan(string planId)

getPlansForTypeAndYear(string planType, int planYear)

updatePlan(Plan plan)

Extra

Plans change from year to year in the insurance industry, this is called crosswalk. Crosswalk record consists of

CrosswalkRecord { fromPlanYear: int, fromPlanId: string, toPlanYear: int, toPlanId: string }

Can you edit this data structure to hold crosswalk structure too ?

It will have these two additional methods

getNextYearPlan(string planId)

getPrevYearPlan(string planId)