Reverse Integer

gistfile1.txt

func reverse(x int) int {
    
    if x < int(math.Pow(-2, 31)) || x > int(math.Pow(2, 31))  {
        return 0
    }
    
    xStr := strconv.Itoa(x)
    reversedNumber := "" 
    
    // Remove the negative sign
    if x < 0 {
        xStr = xStr[1:]
    }
    
    for i := len(xStr) - 1 ; i >= 0 ; i-- {
        reversedNumber += string(xStr[i])
    }
    
    num, err := strconv.ParseInt(reversedNumber, 10, 32)
    if err != nil {
        return 0
    }
    
    if x < 0 {
        num = num * -1
    }
    
    return int(num)
}