27 lines
689 B
PHP
27 lines
689 B
PHP
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<?php
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//$argv = ['', 556, 25, 75, 9, 4, 2, 9];
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//$argv = ['', 134, 100, 6, 1, 1, 6, 6 ];
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//$argv = ['', 306, 50, 1, 5, 1, 8, 7];
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$sum = (int)$argv[1];
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$input_numbers = array_slice($argv, 2);
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$operation = ['+','-','*','/'];
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$best_diff = $sum;
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while($best_diff != 0) {
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shuffle($input_numbers);
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$numbers = array_slice($input_numbers, random_int(1, sizeof($input_numbers)));
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$exp = "";
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foreach($numbers as $n){
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$exp .= $n;
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$exp .= $operation[random_int(0,3)];
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}
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$exp = substr($exp, 0, -1);
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$s = eval("return $exp;");
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if(abs($sum - $s) < $best_diff) {
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$best_diff = abs($sum - $s);
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echo "Found: $best_diff =\t$exp\n";
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}
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}
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