davidon

using System.IO;
using System;

class Solution {

    // Complete the hourglassSum function below.
    static int hourglassSum(int[][] arr) {
        int[] sum = new int[16];
        int k = 0;
        for (int i = 0; i <= 3; i++)

davidon

public function format_phone_number($S) {
    $S = str_replace(' ', '', $S);
    $S = str_replace('-', '', $S);
    $len = strlen($S);
    $num_groups = floor($len / 3);
    $remain = $len % 3;

    if ($num_groups >= 1 && $remain == 1) {
        $num_groups -= 1;
        $remain += 3;   //4

davidon

#include "pch.h"
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <time.h>

using namespace std;

int get_max_profit(vector<int> prices);

davidon

<?php
//this is to get the max gap in an array supposing gap can only be a later number minus a former number

$stock_prices_yesterday = [25, 7, 5, 8, 11, 9];
$m_profit = GetMaxProfit($stock_prices_yesterday);
# returns 6 (buying for $5 and selling for $11)
print "1st:the most profit should be 6: {$m_profit}";

$stock_prices_yesterday = [10, 7, 11, 5, 8, 9];
$m_profit = GetMaxProfit($stock_prices_yesterday);

davidon

<?php
// you can write to stdout for debugging purposes, e.g.
// print "this is a debug message\n";

function solution($A) {
    // write your code in PHP7.0
    $arr_checker = range(1, 100000);

    $A = array_unique($A, SORT_NUMERIC );
    sort($A);

davidon

    /**
     * Convert a value to studly caps case.
     *
     * @param string $value
     *
     * @return string
     */
    public function studly(string $value): string
    {
        return \str_replace(' ', '', \ucwords(\str_replace(['-', '_'], ' ', $value)));

davidon

    /**
     * Convert a string to snake case.
     *
     * @param string $value
     * @param string $delimiter Default to underscore
     *
     * @return string
     */
    public function snake(string $value, ?string $delimiter = null): string
    {

davidon

<?php
namespace App\Debugger;

/**
 * usage example: $log = new MyLogger(); $logger->log($logger::ARGTRACE_NONE . $logger::BACKTRACE_NONE . $logger::SELF_ARGUMENTS_LOW, .......)
 */

//for Symfony project, this is put under src/Debugger/ folder
//for Lumen and Laravel, this is put under app/Debugger/ folder
//create logs directory under PROJECT_HOME