Eric Curtin e50d0ffffe Use getchar over getch (#681)
* Use getchar over getch

getch in Windows specific. Now the code will compile
and work on other platforms like Linux and macOS.

* Update and rename Heap Sort .cpp to heap_sort .cpp

* cpplint fixes

* Rename heap_sort .cpp to heap_sort.cpp
2019-12-16 13:21:16 +01:00
..
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