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MaxSubNonNegativesArray
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// Given an array of integers, A of length N, find out the maximum sum sub-array of non negative numbers from A. | |
/** | |
* @input A : Integer array | |
* | |
* @Output Integer array. | |
*/ | |
package main | |
import "fmt" | |
func chooseMax(subArr1 []int, max1 int, subArr2 []int, max2 int) (maxArr[]int, max int) { | |
if (max2 > max1) || (max1 == max2 && len(subArr2) > len(subArr1)) { | |
maxArr = subArr2 | |
max = max2 | |
} else { | |
maxArr = subArr1 | |
max = max1 | |
} | |
return | |
} | |
func maxSet(A []int ) ([]int) { | |
maxSubArr := []int{} | |
max := 0 | |
currSubArr := []int{} | |
currMax := 0 | |
for _, v := range A { | |
if v < 0 { | |
// subarr ends | |
maxSubArr, max = chooseMax(maxSubArr, max, currSubArr, currMax) | |
currSubArr = nil | |
currMax = 0 | |
} else { | |
// subarr continues | |
currSubArr = append(currSubArr, v) | |
currMax += v | |
} | |
} | |
maxSubArr, max = chooseMax(maxSubArr, max, currSubArr, currMax) | |
return maxSubArr | |
} | |
func main() { | |
fmt.Println(maxSet([]int{0, 0, -1, 0})) | |
} |
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