I initially thought PM stood for Prime Minister, in which case, the answer should be yes [1]. :-)<p>[1] "Prime Minister of Singapore shares his C++ code for Sudoku solver" [ <a href="https://arstechnica.com/information-technology/2015/05/prime-minister-of-singapore-shares-his-c-code-for-sudoku-solver/" rel="nofollow">https://arstechnica.com/information-technology/2015/05/prime...</a> ]