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MinAvgTwoSlice.swift
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MinAvgTwoSlice.swift
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//
// MinAvgTwoSlice.swift
// Programmers1
//
// Created by hwangJi on 2023/03/23.
//
import Foundation
//public func solution4(A : inout [Int]) -> Int {
// var sliceCount = 2
// var minIndex = 0
// var minAvrValue: Double = 100000
//
// while sliceCount < A.count {
// for i in 0..<A.count {
// if i + sliceCount > A.count { break }
// let temp: Double = Double(A[i...i + sliceCount - 1].reduce(0, +)) / Double(sliceCount)
//
// if temp < minAvrValue {
// minIndex = i
// minAvrValue = temp
// } else if temp == minAvrValue && minIndex > i {
// minIndex = i
// }
// }
//
// sliceCount += 1
// }
//
// return minIndex
//}
public func solution4(A : inout [Int]) -> Int {
var minAvgValue: Double = Double(A[0] + A[1]) / 2
var minIndex = 0
for i in 2..<A.count {
let avg2: Double = Double(A[i - 1] + A[i]) / 2
if minAvgValue > avg2 {
minAvgValue = avg2
minIndex = i - 1
}
let avg3: Double = Double(A[i - 2] + A[i - 1] + A[i]) / 3
if minAvgValue > avg3 {
minAvgValue = avg3
minIndex = i - 2
}
}
return minIndex
}