This question runs in a pre-configured Salesforce environment - no personal connection required.
Query the Account object and return a map of Rating to the total NumberOfEmployees for accounts with that rating. Skip accounts where Rating is null or NumberOfEmployees is null. The map should contain one entry per distinct Rating value present in the data.
Examples:
Input: (none)
Output: { 'Hot' => 12000, 'Warm' => 8500, 'Cold' => 1500 }
Explanation: Each rating maps to the sum of employees across accounts of that rating
Input: (none, no rated accounts)
Output: {}
Explanation: An empty map is returned when no accounts have a rating
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