blh0021

Keybase proof

I hereby claim:

• I am blh0021 on github.
• I am benharrington (https://keybase.io/benharrington) on keybase.
• I have a public key ASCEF4NlSJN8zD-A-If46uLTgbm7APL_hhcd-B8S8oqzXgo

To claim this, I am signing this object:

blh0021

#too slow
def sum(s)
  s=s.to_s
  a=s.split("").map(&:to_i)
  a.inject{|sum, a| sum+a}
end

#much faster sum
def sumd(n)
  return 0 if n==0

blh0021

import java.io.*;

public class Main {

  public static void main(String[] args) {
    File file = new File(args[0]);
    try {
      BufferedReader in = new BufferedReader(new FileReader(file));
      String line;
      while ((line = in.readLine()) != null) {

blh0021

# pow 2 3
# 8

function pow
{
  for ((x=1, p=$1; x<$2; x++)); do ((p *= $1)); done
  echo $p
}

# sqrt 4