As the title says.
GNU C++17 (64)
GNU C++17
not only that,
running the first test case in custom invocation:
GNU G++17 ----------> 15000 ms [timed out]
GNU G++14 ----------> 5000 ms
GNU G++11 ----------> 0 ms
GNU G++17 (64) -----> 31 ms
what sorcery is this? help!