I don't know what it takes to study at CalTech. But I nailed the interviews at FB and Google and there's no way I could have studied maths at Cambridge for inst

I don't know what it takes to study at CalTech. But I nailed the interviews at FB and Google and there's no way I could have studied maths at Cambridge for instance. Leetcode is just a matter of solving enough problems so that you can do them almost out of memory on the white board. The curriculum is basically algorithms at undergraduate level. Seriously, it's easy.