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update: 平衡二叉树js版本格式化

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mengyuan
2021-11-22 20:04:35 +08:00
parent 6598443445
commit 434ba4ed39
1 changed files with 14 additions and 20 deletions
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14
problems/0110.平衡二叉树.md
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@ -610,25 +610,19 @@ var isBalanced = function(root) {
// 1. 确定递归函数参数以及返回值 // 1. 确定递归函数参数以及返回值
const getDepth = function(node) { const getDepth = function(node) {
// 2. 确定递归函数终止条件 // 2. 确定递归函数终止条件
if(node===null){ if(node === null) return 0;
return 0;
}
// 3. 确定单层递归逻辑 // 3. 确定单层递归逻辑
let leftDepth = getDepth(node.left); //左子树高度 let leftDepth = getDepth(node.left); //左子树高度
if(leftDepth===-1){
return -1;
}
let rightDepth = getDepth(node.right); //右子树高度 let rightDepth = getDepth(node.right); //右子树高度
if(rightDepth===-1){ if(leftDepth === -1) return -1;
return -1; if(rightDepth === -1) return -1;
}
if(Math.abs(leftDepth - rightDepth) > 1) { if(Math.abs(leftDepth - rightDepth) > 1) {
return -1; return -1;
} else { } else {
return 1 + Math.max(leftDepth, rightDepth); return 1 + Math.max(leftDepth, rightDepth);
} }
} }
return getDepth(root)===-1?false:true; return !(getDepth(root) === -1);
}; };
``` ```