​​点击打开链接​​ A.Thenumberofpositions timelimitpertest memorylimitpertest input output n people,buthedoesn'tknowexactlywhichpositionheoccupies.Hecansaythattherearenolessthan a peoplestandinginfrontofhimandnomorethan b Input n, a and b (0 ≤ a, b < ...