return&quot;&gt;Returns:&lt;/span&gt;&lt;/dt&gt;&lt;dd&gt;red-black tree black height (number of black nodes from root to each leaf)&lt;/dd&gt;&lt;/dl&gt;&lt;/div&gt;&lt;/div&gt;&lt;/li&gt;&lt;/ul&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;"/><link rel="shortcut icon" href="/solidity-treemap/undefined"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css