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    When exactly are skyscrapers blocked by taller ones behind them? Because the 3rd column in the solution to the example, it says that from the bottom, three are visible, but a skyscraper of height 3 obviously blocks a skyscraper of height 1. There isn't even a possible permutation, while looking at only one column or row, where the hints on the sides are 1 and 3 with my understanding. I'm clearly illiterate or something so someone please explain

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    This is THE way of solving this, thanks for sharing

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    This isn't meant to be practical, I just wanted to see if I could have a single loop instead of 4 seperate ones for each direction. The incDir() offsets in the main loop, and after the 2nd loop, are the filthiest thing I think I've coded (apart from putting a ton of things here on one line unnecessarily, and the bitwise & instead of modulus for powers of two). I think it's beautifully disgusting implementation, with a bit of an obfuscation kinda thing going on

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    log10 has issues with large numbers close to having another digit (like 9999999999999999) and will return the incorrect value (causing counted digits to be 1 greater than what it has) due to rounding errors. These are relatively rare edge cases in most datasets but something to keep in mind