\(A. Secret Sport\)
https://codeforces.com/contest/1894/submission/231748875
\(B. Two Out of Three\)
https://codeforces.com/contest/1894/submission/231754216
\(C. Anonymous Informant\)
https://codeforces.com/contest/1894/submission/231772212
\(D. Neutral Tonality\)
大数据不要放solve里 喜提tle2
https://codeforces.com/contest/1894/submission/231782864