Day 10 : Golang | Binary Numbers - Hackerrank.go

Day 10 : Golang | Binary Numbers - Hackerrank.go

package main

import (
    "bufio"
    "fmt"
    "io"
    "os"
    "strconv"
    "strings"
)

func countConsecutiveOnes(binaryValue string) {
    heighestCount := 0
    tempHighestCount := 0

    for index, char := range binaryValue {
        stringChar := string(char)

        if index == 0 && stringChar == "1" && tempHighestCount == 0 {
            tempHighestCount = 1
        }

        if index > 0 && stringChar == "1" {
            if stringChar == string(binaryValue[index-1]) {
                if tempHighestCount == 0 {
                    tempHighestCount = 2
                } else {
                    tempHighestCount++
                }
                if tempHighestCount > heighestCount {
                    heighestCount = tempHighestCount
                }
            } else {
                if tempHighestCount > heighestCount {
                    heighestCount = tempHighestCount
                } else {
                    tempHighestCount = 0
                }
            }
        }

    }

    fmt.Println(heighestCount)
}

func main() {
    reader := bufio.NewReaderSize(os.Stdin, 1024*1024)

    nTemp, err := strconv.ParseInt(readLine(reader), 10, 64)
    checkError(err)
    n := int32(nTemp)

    base2 := strconv.FormatInt(int64(n), 2)
    countConsecutiveOnes(string(base2))
}

func readLine(reader *bufio.Reader) string {
    str, _, err := reader.ReadLine()
    if err == io.EOF {
        return ""
    }

    return strings.TrimRight(string(str), "\r\n")
}

func checkError(err error) {
    if err != nil {
        panic(err)
    }
}