After getting TLE on test 132 for problem C on CF #350, I tried to optimise. I was surprised when I got AC, because the only thing I needed to change was to replace std::unordered_map with std::map. Does anyone have ideas what causes the different performance? I expected that unordered_map should be faster that map, but it is not the case. And also, is there a way to speed up unordered_map? Here are both submissions:↵
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AC — map:↵
http://codeforces.net/contest/670/submission/17757996↵
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TLE — unordered_map:↵
http://codeforces.net/contest/670/submission/17730894
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AC — map:↵
http://codeforces.net/contest/670/submission/17757996↵
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TLE — unordered_map:↵
http://codeforces.net/contest/670/submission/17730894
