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不同的二叉搜索树 #1071

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pwstrick opened this issue Aug 5, 2020 · 0 comments

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Leetcode

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pwstrick commented Aug 5, 2020

96. 不同的二叉搜索树

/**
 * @param {number} n
 * @return {number}
 */
var numTrees = function(n) {
    let c = 1;
    for(let i=0; i<n; i++) {
        c = c * 2 * (2*i+1) / (i+2);
    }
    return c;
};

pwstrick added the Leetcode label

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