摘要：
Party LampsIOI 98 To brighten up the gala dinner of the IOI'98 we have a set of N (10 =0), i.e., 1,4,7,...A counter C records the total number of button presses. When the party starts, all the lamps are ON and the counter C is set to zero. You are given the value of counter C (0 #include
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