The interview was conducted using CoderPad. I originally thought that meant there wouldn’t be a face-to-face video chat anymore, but unexpectedly, there was a button below that could be clicked.


He said that they are currently working from home.

At the beginning, he asked me to introduce myself and asked why I wanted to come back to Android. I answered: I wanted to come back and get familiar with it again.

Then he gave me a question:

LeetCode #3. Longest Substring Without Repeating Characters: Medium;

https://leetcode.com/problems/longest-substring-without-repeating-characters

```javascript

let lengthOfLongestSubstring = function(s) {

let temp = "", ans = "";

for(var i =0; i< s.length; i++) {

var pos = temp.indexOf([s[i]])

if(temp.indexOf([s[i]]) === -1) {

temp += "" + s[i];

} else {

if(temp.length > ans.length) {

ans = temp;

}

temp += s[i];

temp = temp.substring(pos+1);

}

}

if(temp.length > ans.length) {

ans = temp;

}

return ans.length;

};

```

He wanted me to optimize it so that it didn’t use `indexOf`, but I tried using a Map and couldn’t finish it 囧RZ. I’ve somewhat forgotten how I solved it before. Some of what I recalled was incorrect.

According to him, there are currently five Android team members, and they use Scrum.

Judging from his attitude, it seems that overtime is unpaid.

The work mainly involves implementing new features and fixing bugs. It also feels like there isn’t much that’s particularly new or innovative.

I asked him what kind of colleague he was looking for.

He answered: Someone with a proactive attitude.

I asked him: Did you see anything in my résumé that met the criteria you were looking for?

He answered: You’ve listed many projects, you’re not opposed to learning technologies beyond Android, and you’re willing to learn things you didn’t previously know. I think you have those qualities.

And that was it—the conversation ended for today.

....