I used cin and got TLE in Feb 15th.

Then I test the scanf and got Accepted.

I found it interesting that different C++ get different verdict with cin.

Several times of MS C++ because I found interesting of it TLE on different test.

My Submissions on 932D - Tree with submissions 40405924 (Code is same, Language is different)

MS C++ Time limit exceeded on test 80

GNU C++17 Accepted 1356 ms

GNU C++14 Accepted 1326 ms

GNU C++11 Time limit exceeded on test 81

GNU C++ Accepted 1902 ms

GNU C++17 Diagnostics Time limit exceeded on test 11

MS C++ Time limit exceeded on test 81

MS C++(scanf) Accepted 421 ms

MS C++(Submit on Feb 15th) Time limit exceeded on test 82