Exercices complémentaires

Advent of Code#

https://adventofcode.com/

Exercism#

1. opérateurs arithmétiques et boucles
   1. https://exercism.org/tracks/php/exercises/ordinal-number/
   2. https://exercism.org/tracks/php/exercises/sum-of-multiples
2. Chaines de caractères
   1. https://exercism.org/tracks/php/exercises/reverse-string
   2. https://exercism.org/tracks/php/exercises/binary
   3. https://exercism.org/tracks/php/exercises/rna-transcription
   4. https://exercism.org/tracks/php/exercises/atbash-cipher
3. Tableaux
   1. https://exercism.org/tracks/php/exercises/nucleotide-count
   2. https://exercism.org/tracks/php/exercises/word-count/edit
   3. https://exercism.org/tracks/php/exercises/flatten-array
   4. https://exercism.org/tracks/php/exercises/difference-of-squares
   5. https://exercism.org/tracks/php/exercises/accumulate
4. Chaines et tableaux
   1. https://exercism.org/tracks/php/exercises/hamming

#

À quoi sert ce programme ?#

Dites pour chaque programme ce qu'il fait et à quoi il sert.

function process_data($a, $b) {
        $c = $a + $b;
        return $c;
    }

    $first_val = 5;
    $second_val = 10;

    $result = process_data($first_val, $second_val);
    echo $result;

function calculate_values($input_array) {
    $output_array = [];
    $counter = 0;
    foreach($input_array as $value) {
        $output_array[$counter] = $value * 2;
        $counter++;
    }
    return $output_array;
}

function organize_data($input_array) {
    sort($input_array);
    return $input_array;
}

$original_data = [5, 2, 8, 1, 9];
$processed_data = calculate_values($original_data);
$organized_data = organize_data($processed_data);

print_r($organized_data);

function a($b) {
    $c = count($b);
    for ($d = 0; $d < $c / 2; $d++) {
        $e = $b[$d];
        $b[$d] = $b[$c - $d - 1];
        $b[$c - $d - 1] = $e;
    }
    return $b;
}
$f = [1, 2, 3, 4, 5];
$g = a($f);
print_r($g);

function a($b) {
    $c = str_split($b);
    $d = array_count_values($c);
    arsort($d);
    return key($d);
}

$e = "hello world";
$f = a($e);
echo $f;

function a($b) {
    $c = 0;
    foreach ($b as $d) {
        $c += $d;
    }
    return $c;
}

$e = [1, 2, 3, 4, 5];
$f = a($e);
echo $f;

function a($b) {
    $c = [];
    $d = explode(" ", $b);
    foreach ($d as $e) {
        if (strlen($e) > 3) {
            $f = str_split($e);
            $f[3] = "*";
            $g = implode("", $f);
            $c[] = $g;
        } else {
            $c[] = $e;
        }
    }
    return implode(" ", $c);
}
$h = "Hello my name is John";
$i = a($h);
echo $i;

function a($b) {
    for ($i = 0; $i < count($b); $i++) {
        $temp = $b[$i];
        $j = $i-1;
        while($j >= 0 && $b[$j] > $temp) {
            $b[$j+1] = $b[$j];
            $j--;
        }
        $b[$j+1] = $temp;
    }
    return $b;
}

$c = [3, 1, 4, 1, 5, 9, 2, 6, 5];
$d = a($c);
print_r($d);

function a($b) {
    for ($i = 0; $i < count($b) - 1; $i++) {
        $min = $i;
        for ($j = $i + 1; $j < count($b); $j++) {
            if ($b[$j] < $b[$min]) {
                $min = $j;
            }
        }
        if ($i != $min) {
            $temp = $b[$i];
            $b[$i] = $b[$min];
            $b[$min] = $temp;
        }
    }
    return $b;
}

$c = [4, 9, 5, 3, 9, 2, 2, 1];
$d = a($c);
print_r($d);