In part, that’s because it’s harder to empathize with someone who feels distant or unknown than a close loved one. “The more shared experiences you have with someone, the more of a rich, nuanced representation you can draw on,” Cameron says. But empath…
1. 进入 vim 编辑器
在终端中输入以下命令:
vim ~/.bashrc
2. 进入插入模式
打开文件后,你将处于普通模式。在普通模式下,你不能直接编辑文本。
要进入插入模式,请按下 i 键。这时,你应该会看到屏幕底部出现 -- 插…
题目: 题解:
class Solution {public int pathSum(TreeNode root, int targetSum) {Map<Long, Integer> prefix new HashMap<Long, Integer>();prefix.put(0L, 1);return dfs(root, prefix, 0, targetSum);}public int dfs(TreeNode root,…