摘要:
Mother's MilkFarmer John has three milking buckets of capacity A, B, and C liters. Each of the numbers A, B, and C is an integer from 1 through 20, in... 阅读全文
摘要:
Arithmetic ProgressionsAn arithmetic progression is a sequence of the form a, a+b, a+2b, ..., a+nb where n=0,1,2,3,... . For this problem, a is a non-... 阅读全文