bvpatel / PerfectRootHex.java

Created June 17, 2021 11:44

Given a hexadecimal string, s (e.g. "1a", "12b9c7"). Find out the minimum number of pieces, i, to split this string such that each of the i pieces is a hexadecimal representation of a perfect square.

	/*
	Apollo likes perfect squares of integers (e.g. 1, 4, 9, 25 etc). You are given a hexadecimal string, s (e.g. "1a", "12b9c7"). Find out the minimum number of pieces, i, to split this string such that each of the i pieces is a hexadecimal representation of a perfect square. Note that this may not be possible for every hexadecimal string.

	Complete the getMin function in your editor, in a language of your choice. It has one parameter: a string, s, a valid representation of a hexadecimal number. It must return an integer denoting the value of i; if there is no such positive integer i, return ?1.

	Bonus: Performance is a concern. An unoptimized solution will see timeouts in some of the large test cases.

	Input Format
	The locked stub code in your editor reads a hexadecimal string, s, from stdin and passes it to your function. The input will conform to the following formats:

bvpatel / errors.go

Created May 3, 2021 05:28 — forked from sudaraka94/errors.go

Custom error struct and helpers

	package errors

	import "github.com/sirupsen/logrus"

	type Operation string

	type ErrorType string

	const (
	NotFoundError ErrorType = "NOT_FOUND"

bvpatel / cookie_jar.go

Created December 14, 2020 06:56 — forked from rowland/cookie_jar.go

Go http client with cookie support

	package main

	import (
	"http"
	"bytes"
	"fmt"
	)

	type CookieJar struct {
	Cookies []*http.Cookie

bvpatel / run.sh

Created October 19, 2019 17:48

Java daemon service for init.d

	#!/bin/sh
	SERVICE_NAME=MyService
	PATH_TO_JAR=/usr/local/MyProject/MyJar.jar
	PID_PATH_NAME=/tmp/MyService-pid
	case $1 in
	start)
	echo "Starting $SERVICE_NAME ..."
	if [ ! -f $PID_PATH_NAME ]; then
	nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
	echo $! > $PID_PATH_NAME

bvpatel / monitor.sh

Created October 17, 2019 12:21

Monitoring linux services

	#!/bin/bash

	service=$@
	/bin/systemctl -q is-active "$service.service"
	status=$?
	if [ "$status" == 0 ]; then
	echo "OK"
	else
	/bin/systemctl start "$service.service"
	fi

bvpatel / 00. tutorial.md

Created July 27, 2019 07:27 — forked from maxivak/00. tutorial.md

Importing/Indexing database (MySQL or SQL Server) in Solr using Data Import Handler

Install Solr

download and install Solr from http://lucene.apache.org/solr/.

you can access Solr admin from your browser: http://localhost:8983/solr/

use the port number used in installation.

bvpatel / DistributedObjectCache.java

Last active April 11, 2019 06:39

Distributed cache for object in Map reduce job

	package pubmatic.matrix.confluent.utils;

	import org.apache.commons.io.FilenameUtils;
	import org.apache.hadoop.fs.FileSystem;
	import org.apache.hadoop.fs.Path;
	import org.apache.hadoop.mapreduce.Job;
	import org.apache.hadoop.mapreduce.JobContext;
	import org.apache.log4j.Logger;

	import java.io.*;

bvpatel / nginx.conf

Created January 24, 2018 08:36 — forked from micho/nginx.conf

nginx config for http/https proxy to localhost:3000

	First, install nginx for mac with "brew install nginx".

	Then follow homebrew's instructions to know where the config file is.

	1. To use https you will need a self-signed certificate: https://devcenter.heroku.com/articles/ssl-certificate-self
	2. Copy it somewhere (use full path in the example below for server.* files)
	3. sudo nginx -s reload
	4. Access https://localhost/

	Edit /usr/local/etc/nginx/nginx.conf:

Bhavesh Patel bvpatel

Importing/Indexing database (MySQL or SQL Server) in Solr using Data Import Handler

Install Solr