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Use recursion visualizer: https://recursion.vercel.app/
https://leetcode.com/problems/n-th-tribonacci-number/
```js
var tribonacci = function(n) {
if (n == 0) {
return 0
}
…
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I was not able to download problems after login. I'm running the plugin behind corporate firewall, I am sure the proxy setting is working fine. The LeetCode log as below:
VS Code: **1.47.2**
```
…
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Type: Performance Issue
Visual Studio Code crashes my laptop, its freezing the whole laptop.
I am unable to code better due to again and again open and closing and hanging laptop due to vs code
VS…
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### LeetCode Username
soyukotoda
### Problem Number, Title, and Link
1257. Smallest Common Region https://leetcode.com/problems/smallest-common-region/
### Bug Category
Missing test case *(Incorr…
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```bash
Buildfile: /leetcode-helper/build.xml
compile:
[echo] Compile source code for problem two_sum ...
[javac] Compiling 1 source file to /leetcode-helper/build
[javac] Compilin…
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# 01
## algorithm
```python
# https://leetcode-cn.com/problems/combinations/
# 77. 组合
# clarify 不能有重复组合，穷尽所有可能组合
# possible solution 回溯？！
#
from collections import deque
class Solution…
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## 🐛 Bug Report
Here is the log :
```
login: cookie: /home/zhaodachuan/.vscode-server/extensions/leetcode.vscode-leetcode-0.18.0/node_modules/vsc-leetcode-cli/lib/plugins/leetcode.js:542
retur…
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win10 with ant 1.10.5 and git bash
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给定两个整数 n 和 k，返回 1 ... n 中所有可能的 k 个数的组合。
示例:
```
输入: n = 4, k = 2
输出:
[
[2,4],
[3,4],
[2,3],
[1,2],
[1,3],
[1,4],
]
```
来源：力扣（LeetCode）
链接：https://leetcode-cn.com/problems/…
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Since I've created an solution1 class to implement solution interface which takes TreeNode class param, but when I went to Tester.java part tried to write test case with TreeNode, how do I declare the…