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prime 解决方案: publicclassSolution{privatestaticBigDecimalone=newBigDecimal(1);privatestaticbooleanisPrime(String n){BigIntegerinteger=newBigInteger(n);returninteger.isProbablePrime(1); }publicstaticvoidmain(String[] args)throwsIOException {BufferedReaderbufferedReader=newBufferedReader(newInputStreamReader(System...
This is a more efficient and correct solution: var isValidBST = function (root, min, max) { return isBSTUtil(root, min, max); }; var isBSTUtil = function (root, min, max) { if (!root) { return true; } if (root.val < min || root.val > max) { return false; } return ...
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