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我们知道,中学所学的数是采用十进制, 计算机在设计中采用了二进制．在解一些竞赛题时,若能巧妙地运用数的不同进制,可使问题简洁化,请看下面几例．
We know that the numbers learned in the middle school are in decimal. The computer uses binary in the design. When solving some contest questions, if you can skillfully use the different hexadecimals of numbers, you can simplify the problem. Please see the following examples.