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  1. Prepare
  2. Data Structures
  3. Arrays
  4. Array Manipulation
  5. Discussions

Array Manipulation

  • albertgaya
     + 1 comment

    New on this site and having hard time with this task. Luckily found your comment and found my mistake. here's my short version of yours

    <?php
$_fp = fopen("php://stdin", "r");
$_fp2 = fopen('php://stdout', 'w');
/* Enter your code here. Read input from STDIN. Print output to STDOUT */

fscanf($_fp, "%d %d", $n, $m);

$r = [];

for($i=0; $i<$m; $i++){
    fscanf($_fp, '%d %d %d', $a, $b, $k);

    $r[$a] += $k;
    $r[$b+1] -= $k;   
}
ksort($r);

$max = $sum = 0;

foreach ($r as $val) {
    $sum += $val;
    if ($sum > $max) {
        $max = $sum;
    }
}

fwrite($_fp2, $max);  
?>