<?php

/**
 * @preserve 4eca117dceb264011398969700e63bda
 *
 * 4eca117dceb264011398969700e63bda
 * htmlphp
 * lab1
 * v2
 * rasb14
 * 2017-09-02 17:52:52
 * v2.3.3 (2017-06-12)
 *
 * Generated 2017-09-02 20:06:47 by dbwebb lab-utility v2.3.3 (2017-06-12).
 * https://github.com/mosbth/lab
 */

// Set error reporting to verbose
error_reporting(-1);              // Report all type of errors
ini_set('display_errors', 1);     // Display all errors

// Load and create object with lab utilities
require __DIR__ . "/.Dbwebb.php";
$dbwebb = new Dbwebb();


/** ===================================================================
 * Lab 1 - htmlphp
 *
 * If you need to peek at examples or just want to know more, take a look at
 * the [PHP manual](http://php.net/manual/en/langref.php).
 *
 * Here you will find everything this lab will go through and much more.
 *
 */


/** -------------------------------------------------------------------
 * Section 1 . Integers, floats and basic arithmetics
 *
 * The foundation of numbers and basic arithmetic.
 *
 */


/**
 * Exercise 1.1 (1 points)
 *
 * Create two variables called `numOne` and `numTwo` and assign to them the
 * values 261 and 348.
 *
 * Sum up the variables and answer with the result.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$numOne = 261;
$numTwo = 348;

$ANSWER = $numOne + $numTwo;

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.1", $ANSWER, false);

/**
 * Exercise 1.2 (1 points)
 *
 * Use your two variables `numOne` and `numTwo`. Subtract `numOne` from
 * `numTwo` and answer with the result.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$ANSWER = $numTwo - $numOne;

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.2", $ANSWER, false);

/**
 * Exercise 1.3 (1 points)
 *
 * Divide `numOne` with `numTwo` and use the function `round()` to round the
 * answer to 1 decimal.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$ANSWER = round($numOne / $numTwo, 1);

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.3", $ANSWER, false);

/**
 * Exercise 1.4 (1 points)
 *
 * Create a variable called `floatOne` and give it the value 313.53. Create
 * another variable called `floatTwo` and give it the value 173.94. Sum up the
 * variables and answer with the result rounded to 2 decimals.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$floatOne = 313.53;
$floatTwo = 173.94;

$ANSWER = round($floatOne + $floatTwo, 2);

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.4", $ANSWER, false);

/**
 * Exercise 1.5 (1 points)
 *
 * Subtract `floatOne` from `floatTwo`, round up to 3 decimals and answer with
 * the result.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$ANSWER = round($floatTwo - $floatOne, 3);

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.5", $ANSWER, false);

/**
 * Exercise 1.6 (1 points)
 *
 * Create a variable called `floatThree` and give it the value 63.32.  Add
 * `floatOne` to `floatTwo` and multiply the result with `floatThree`, take
 * that result and divide it by `numOne`.
 *
 * Answer with the result rounded to 4 decimals.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$floatThree = 63.32;

$ANSWER = round(($floatOne + $floatTwo) * $floatThree / $numOne, 4);

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.6", $ANSWER, false);

/**
 * Exercise 1.7 (1 points)
 *
 * Create a variable `modOne` with a value of 907 and a variable `modTwo`
 * holding the value 40.
 *
 * Answer with the result of `modOne` modulo (%) `modTwo`.
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$modOne = 907;
$modTwo = 40;

$ANSWER = $modOne % $modTwo;

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("1.7", $ANSWER, false);

/** -------------------------------------------------------------------
 * Section 2 . Extra assignments
 *
 * These questions are worth 3 points each. Solve them for extra points.
 *
 */


/**
 * Exercise 2.1 (3 points)
 *
 * You are going to solve the well-known 'chessboard and rice grain problem'.
 *
 * Imagine you have a standard chessboard and put one rice grain on the first
 * square. Then you put two grains on the second square, four on the third,
 * eight on the fourth and so on... How many rice grains are there on the last
 * square?
 *
 * Answer with the square root of the result, rounded to 2 decimals. (Make
 * sure the answer is of the type `double`).
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$ANSWER = round(sqrt(pow(2, 63) - 1), 2);

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("2.1", $ANSWER, false);

/**
 * Exercise 2.2 (3 points)
 *
 * Sum all numbers from 1 to 100. Answer with the result. (Make sure the
 * answer is of the type `integer`)
 *
 * Write your code below and put the answer into the variable ANSWER.
 */

$res = 0;
for ($i = 1; $i <= 100; $i++) {
    $res += $i;
}

$ANSWER = $res;

// I will now test your answer - change false to true to get a hint.
echo $dbwebb->assertEqual("2.2", $ANSWER, false);


// Wrap it up
exit($dbwebb->exitWithSummary());