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Rafael S.T. Vieira

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Rafael S.T. Vieira liked Problem 44037. Pascal's triangle

13 hours and 39 minutes ago

Rafael S.T. Vieira submitted Solution 2982016 to Problem 44037. Pascal's triangle

13 hours and 40 minutes ago

Rafael S.T. Vieira liked Problem 44292. Archimedes principle

13 hours and 48 minutes ago

Rafael S.T. Vieira submitted a Comment to Problem 2982. Get a Fibonacci number's index.

I agree with Jan. http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fibtable.html (this list begins at 0). The 100th fibonnaci number is 573147844013817084101 (5.731478440138171e+20), and not 5.731478440138172e+20.

17 hours and 22 minutes ago

Rafael S.T. Vieira submitted a Comment to Problem 43970. Calculate SNR in dB using original signal and quantized signal

It's a good problem, but it needs more test cases. For instance, you could create a random signal then apply floor to all values and request its SNR.

18 hours and 35 minutes ago

Rafael S.T. Vieira received Community Group Solver badge for Functions II

18 hours and 50 minutes ago

Rafael S.T. Vieira received Community Group Solver badge for Number theory

on 22 Sep 2020 at 14:57

Rafael S.T. Vieira submitted Solution 2977939 to Problem 45250. Be happy

on 22 Sep 2020 at 4:49

Rafael S.T. Vieira liked Problem 45250. Be happy

on 22 Sep 2020 at 4:47

Rafael S.T. Vieira submitted Solution 2977933 to Problem 45250. Be happy

on 22 Sep 2020 at 4:47

Rafael S.T. Vieira liked Problem 45194. Cantor counting

on 22 Sep 2020 at 4:27

Rafael S.T. Vieira liked Problem 45253. Pell numbers

on 22 Sep 2020 at 4:07

Rafael S.T. Vieira submitted a Comment to Problem 1883. GJam 2013 China Event: Happy Teams 100 Pairs

Good example from Alfonso. I had to fix my code. The problem is pretty much about trying to create a tree. Alfonso's example creates a small forest: a case that seems to be lacking from the test suite.

on 22 Sep 2020 at 3:03

Rafael S.T. Vieira received Community Group Solver badge for Operations

on 21 Sep 2020 at 23:20

Rafael S.T. Vieira liked Problem 1274. Accurate Division

on 21 Sep 2020 at 22:27

Rafael S.T. Vieira liked Problem 43650. Church Encoding

on 21 Sep 2020 at 21:40

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