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vo /
Created Apr 24, 2012
Simple cryptarithmetic puzzle solver in Java, C, and Python
public class SimpleSolver {
static int eval(String q) {
int val = 0;
java.util.StringTokenizer st = new java.util.StringTokenizer(q, "*/+-", true);
while (st.hasMoreTokens()) {
String next = st.nextToken().trim();
if (next.equals("+")) {
val += Integer.parseInt(st.nextToken().trim());
} else if (next.equals("-")) {
val -= Integer.parseInt(st.nextToken().trim());
brnrc /
Last active Oct 10, 2017
Script to get a free steam key
# Fetches an url and scan the html document for a regex pattern (the STEAM KEY)
# monitoring if the KEY changes and copying it to the system's clipboard.
# Output:
# CBT2J-R0GID-8FAJI -> 12:20
# K5RJH-86RH7-W0Y2W -> 12:25
# IV37H-83VGQ-MT9BF -> 12:30
# WY2T9-Q35ZV-8LYCX -> 12:35
# MR7BH-RJ3VJ-MADHW -> 12:40
# HBQPD-BFCG7-06577 -> 12:45
zach-klippenstein /
Last active Feb 18, 2020
The keystore password on Java keystore files is utterly pointless. You can reset it without knowing it, as shown by this code. Note that private keys are still secure, as far as I know. The JKS implementation is copyright Casey Marshall (, and the original source is available at I've in…
import java.util.*;
public class ChangePassword
private final static JKS j = new JKS();
public static void main(String[] args) throws Exception
mrchief / OpenWithSublimeText2.bat
Last active Jan 23, 2020
Add "Open with Sublime Text 2" to Windows Explorer Context Menu (including folders)
View OpenWithSublimeText2.bat
@echo off
SET st2Path=C:\Program Files\Sublime Text 2\sublime_text.exe
rem add it for all file types
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 2" /t REG_SZ /v "" /d "Open with Sublime Text 2" /f
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 2" /t REG_EXPAND_SZ /v "Icon" /d "%st2Path%,0" /f
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 2\command" /t REG_SZ /v "" /d "%st2Path% \"%%1\"" /f
rem add it for folders
@reg add "HKEY_CLASSES_ROOT\Folder\shell\Open with Sublime Text 2" /t REG_SZ /v "" /d "Open with Sublime Text 2" /f
jbonney / spotify_keybindings
Created Jun 9, 2013
Spotify - Linux key bindings. From XFCE / Ubuntu keyboard shortcuts configuration, assign the control command to their key.
View spotify_keybindings
"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause" XF86AudioPlay
"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop" XF86AudioStop
"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next" XF86AudioNext
"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous" XF86AudioPrevious
karpathy /
Created May 30, 2016
Training a Neural Network ATARI Pong agent with Policy Gradients from raw pixels
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
import numpy as np
import cPickle as pickle
import gym
# hyperparameters
H = 200 # number of hidden layer neurons
batch_size = 10 # every how many episodes to do a param update?
learning_rate = 1e-4
gamma = 0.99 # discount factor for reward
# Inspired by
import random
import gym
import math
import numpy as np
from collections import deque
from keras.models import Sequential
from keras.layers import Dense
from keras.optimizers import Adam
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