Created
June 6, 2024 21:09
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| import Foundation | |
| func rejectRequest(_ requests: [String], rateLimit: Int) -> [Int] { | |
| var ids = [Int]() | |
| var requestMap = [String: [Int]]() | |
| requests.forEach { request in | |
| let rawData = request.split(separator: " ") | |
| let ipAddress = String(rawData[1]) | |
| guard let requestId = Int(rawData[0]), | |
| let time = Int(rawData[2]) else { | |
| fatalError("Invalid input") | |
| } | |
| var requestHistory: [Int] | |
| if let history = requestMap[ipAddress] { | |
| requestHistory = history + [time] | |
| } else { | |
| requestHistory = [time] | |
| } | |
| let newValue = requestHistory.filter { (time - $0) <= 1000 } | |
| requestMap[ipAddress] = newValue | |
| if newValue.count > rateLimit { | |
| ids.append(requestId) | |
| } | |
| } | |
| return ids | |
| } | |
| let request1 = ["1 192.168.1.1 50000", "2 192.168.1.1 50100", "3 192.168.1.1 52100", "4 192.168.1.1 53100", "5 192.168.1.1 54000"] | |
| let rateLimit1 = 1 | |
| print(rejectRequest(request1, rateLimit: rateLimit1)) |
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