![Google Image placeholder 9899](https://d2qikg3rnxq7n1.cloudfront.net/google-icon-512.png)
(This question has been seen in the interviews of the following companies: Google)
Most Frequently-asked Google Coding Interview Questions 2021
1. Google Robot in Maze Problem - Count Number of Ways in Matrix
![](https://s3-us-west-2.amazonaws.com/aonecode/interviewquestions/788-aonecode-g8-min.png)
1.2 Count Number of Ways with Obstacles in Matrix
![](https://s3-us-west-2.amazonaws.com/aonecode/interviewquestions/269-aonecode-g9-min.png)
1.3 Count Number of Ways Detour for North
![](https://s3-us-west-2.amazonaws.com/aonecode/interviewquestions/699-aonecode-g10-min.png)
![](https://s3-us-west-2.amazonaws.com/aonecode/interviewquestions/999-aonecode-g11-min.png)
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