@AtCoder Beginner Contest 078 C: HSI (数学期望;数学列式相消法)
ProblemStatementTakahashiisnowcompetinginaprogrammingcontest,buthereceivedTLEinaproblemwheretheanswerisYESorNO.Whenhecheckedthedetailedstatusofthesubmission,therewereNNtestcasesintheproblem,andthecode