18 lines
332 B
PHP
18 lines
332 B
PHP
<?php
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/**
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*
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*/
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$increased = 0;
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$input = file('input', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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$input = array_map('intval', $input);
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$previousReading = array_shift($input);
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foreach ($input as $line) {
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if ($line > $previousReading) {
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$increased++;
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}
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$previousReading = $line;
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}
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echo $increased; //1553
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