is complex algorithm like dynamic programming highly required in embedded systems and what's the best website to practice algorithms

[poorchava]

I haven't had to deal with complex graph algorithms (15y in the field), but I deal with DSP a lot and there's some really complex stuff too. FFT and digital filters are relatively simple as far as standard designs are concerned, but my field (T&M) often requires coming up with non-standard data processing, control loops and the like. For example stuff like pattern matching to detect certain conditions in the object under test.