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<?php
echo "10進数を入力:";
$jyu = fgets(fopen("php://stdin", "r"));
//変換
for ($i = 1; $i < 16; $i++) {
$nisin[$i] = $jyu % 2;
$jyu = $jyu / 2;
}
//出力
for ($i = 16-1; $i >= 0; $i--) {
echo "$nisin[$i]"; //printで出力でもOK
}
?>
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