[BUG]Stock Exchange Losses - Golang unable to receive large input data

Feedback & Bugs
#1

As stated here, the Go code for the Stock Exchange Losses puzzle seems unable to handle the large amount of input data given in example 5:

scanner := bufio.NewScanner(os.Stdin)

var n int
scanner.Scan()
fmt.Sscan(scanner.Text(),&n)
fmt.Fprintln(os.Stderr, "Count of data points:", n)

scanner.Scan()
text := scanner.Text()
fmt.Fprintln(os.Stderr, "Full input text received:", text)

inputs := strings.Split(text, " ")
fmt.Fprintln(os.Stderr, "Count of actual inputs:", len(inputs))
fmt.Fprintln(os.Stderr, "Actual inputs:", inputs)

Which outputs this for example 2:

Count of data points: 6
Full input text received: 5 3 4 2 3 1
Count of actual inputs: 6
Actual inputs: [5 3 4 2 3 1]

And this for example 5:

Count of data points: 99999
Full input text received: 
Count of actual inputs: 1
Actual inputs: []

This is not true in javascript, where all the input data for example 5 is read correctly

#2

i tried to investigate but got 100% reproduce of the case

#3

Hi,

I will try to solve this puzzle and I have the same issue. The issue is that the Scanner is limited to 64*1024.

For the 5th example, the following code will produce an error: bufio.Scanner: token too long

scanner.Scan() 
fmt.Fprintln(os.Stderr, scanner.Err())
text := scanner.Text()

I have checked the documentation and we can increase the maximum of the buffer size with the method Scanner.Buffer.
I try with this method but this method is only available in the version 1.6

#4

Thank you rbouleau, looks like scanner.Buffer(make([]byte, 1000000), 1000000); fixes the issue for me.