I am only aware of one study that found it was actually 97% of full time engineers couldn't write code[1], but I don't think that was a very rigorous study. The

I am only aware of one study that found it was actually 97% of full time engineers couldn't write code[1], but I don't think that was a very rigorous study. The best evidence would be the very well known blog post by Jeff Atwood [2] or this article on c2[3]. Also you don't need to ask LeetCode questions, simple for loops can throw most people off, that I know from anecdata. 1. https://www.gadgetsnow.com/jobs/95-engineers-in-india-unfit-for-software-development-jobs-claims-report/articleshow/58278224.cms https://www.gadgetsnow.com/jobs/95-engineers-in-india-unfit-... 2. https://blog.codinghorror.com/why-cant-programmers-program/ https://blog.codinghorror.com/why-cant-programmers-program/ 3. http://wiki.c2.com/?FizzBuzzTest http://wiki.c2.com/?FizzBuzzTest