24 lines
308 B
PHP
24 lines
308 B
PHP
<?php
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// PHP
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function gcd(int $a, int $b) {
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if ($b > 0) return gcd($b, $a % $b);
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else return $a;
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}
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echo "test\n";
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const N = 1000;
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$A = array();
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for ($i = 0; $i < N; $i++) {
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$A[$i] = $i;
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}
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$ans = 0;
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foreach ($A as $i) {
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foreach ($A as $j) {
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$ans += gcd($i, $j);
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}
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}
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echo $ans;
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