0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
刚开始做的时候，把前20位打表，看结果也没找出什么规律，后来经高手提示，才明白：
^
0_0_15973972_30323.cpp:5:1: error: stray '\210' in program
0_0_15973972_30323.cpp:5:1: error: stray '\232' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\200' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\247' in program
0_0_15973972_30323.cpp:5:1: error: stray '\213' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\201' in program
0_0_15973972_30323.cpp:5:1: error: stray '\232' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\232' in program
0_0_15973972_30323.cpp:5:1: error: stray '\204' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\227' in program
0_0_15973972_30323.cpp:5:1: error: stray '\266' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\200' in program
0_0_15973972_30323.cpp:5:1: error: stray '\231' in program
0_0_15973972_30323.cpp:5:1: error: stray '\357' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\214' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\212' in program
0_0_15973972_30323.cpp:5:1: error: stray '\212' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\211' in program
0_0_15973972_30323.cpp:5:1: error: stray '\215' in program
0_0_15973972_30323.cpp:5:1: error: stray '\344' in program
0_0_15973972_30323.cpp:5:1: error: stray '\275' in program
0_0_15973972_30323.cpp:5:1: error: stray '\215' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\211' in program
0_0_15973972_30323.cpp:5:1: error: stray '\223' in program
0_0_15973972_30323.cpp:5:1: error: stray '\350' in program
0_0_15973972_30323.cpp:5:1: error: stray '\241' in program
0_0_15973972_30323.cpp:5:1: error: stray '\250' in program
0_0_15973972_30323.cpp:5:1: error: stray '\357' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\214' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\234' in program
0_0_15973972_30323.cpp:5:1: error: stray '\213' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\273' in program
0_0_15973972_30323.cpp:5:1: error: stray '\223' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\236' in program
0_0_15973972_30323.cpp:5:1: error: stray '\234' in program
0_0_15973972_30323.cpp:5:1: error: stray '\344' in program
0_0_15973972_30323.cpp:5:1: error: stray '\271' in program
0_0_15973972_30323.cpp:5:1: error: stray '\237' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\262' in program
0_0_15973972_30323.cpp:5:1: error: stray '\241' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\211' in program
0_0_15973972_30323.cpp:5:1: error: stray '\276' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\207' in program
0_0_15973972_30323.cpp:5:1: error: stray '\272' in program
0_0_15973972_30323.cpp:5:1: error: stray '\344' in program
0_0_15973972_30323.cpp:5:1: error: stray '\273' in program
0_0_15973972_30323.cpp:5:1: error: stray '\200' in program
0_0_15973972_30323.cpp:5:1: error: stray '\344' in program
0_0_15973972_30323.cpp:5:1: error: stray '\271' in program
0_0_15973972_30323.cpp:5:1: error: stray '\210' in program
0_0_15973972_30323.cpp:5:1: error: stray '\350' in program
0_0_15973972_30323.cpp:5:1: error: stray '\247' in program
0_0_15973972_30323.cpp:5:1: error: stray '\204' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\276' in program
0_0_15973972_30323.cpp:5:1: error: stray '\213' in program
0_0_15973972_30323.cpp:5:1: error: stray '\357' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\214' in program
0_0_15973972_30323.cpp:5:1: error: stray '\345' in program
0_0_15973972_30323.cpp:5:1: error: stray '\220' in program
0_0_15973972_30323.cpp:5:1: error: stray '\216' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\235' in program
0_0_15973972_30323.cpp:5:1: error: stray '\245' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\273' in program
0_0_15973972_30323.cpp:5:1: error: stray '\217' in program
0_0_15973972_30323.cpp:5:1: error: stray '\351' in program
0_0_15973972_30323.cpp:5:1: error: stray '\253' in program
0_0_15973972_30323.cpp:5:1: error: stray '\230' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\211' in program
0_0_15973972_30323.cpp:5:1: error: stray '\213' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\217' in program
0_0_15973972_30323.cpp:5:1: error: stray '\220' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\244' in program
0_0_15973972_30323.cpp:5:1: error: stray '\272' in program
0_0_15973972_30323.cpp:5:1: error: stray '\357' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\214' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\211' in program
0_0_15973972_30323.cpp:5:1: error: stray '\215' in program
0_0_15973972_30323.cpp:5:1: error: stray '\346' in program
0_0_15973972_30323.cpp:5:1: error: stray '\230' in program
0_0_15973972_30323.cpp:5:1: error: stray '\216' in program
0_0_15973972_30323.cpp:5:1: error: stray '\347' in program
0_0_15973972_30323.cpp:5:1: error: stray '\231' in program
0_0_15973972_30323.cpp:5:1: error: stray '\275' in program
0_0_15973972_30323.cpp:5:1: error: stray '\357' in program
0_0_15973972_30323.cpp:5:1: error: stray '\274' in program
0_0_15973972_30323.cpp:5:1: error: stray '\232' in program
0_0_15973972_30323.cpp:7:1: error: stray '\345' in program
因为一次交换是针对所有的数而言，所以只要任意一个数回到原始位置，那么所有的牌就都回到了原始位置；
^
0_0_15973972_30323.cpp:7:1: error: stray '\233' in program
0_0_15973972_30323.cpp:7:1: error: stray '\240' in program
0_0_15973972_30323.cpp:7:1: error: stray '\344' in program
0_0_15973972_30323.cpp:7:1: error: stray '\270' in program
0_0_15973972_30323.cpp:7:1: error: stray '\272' in program
0_0_15973972_30323.cpp:7:1: error: stray '\344' in program
0_0_15973972_30323.cpp:7:1: error: stray '\270' in program
0_0_15973972_30323.cpp:7:1: error: stray '\200' in program
0_0_15973972_30323.cpp:7:1: error: stray '\346' in program
0_0_15973972_30323.cpp:7:1: error: stray '\254' in program
0_0_15973972_30323.cpp:7:1: error: stray '\241' in program
0_0_15973972_30323.cpp:7:1: error: stray '\344' in program
0_0_15973972_30323.cpp:7:1: error: stray '\272' in program
0_0_15973972_30323.cpp:7:1: error: stray '\244' in program
0_0_15973972_30323.cpp:7:1: error: stray '\346' in program
0_0_15973972_30323.cpp:7:1: error: stray '\215' in program
0_0_15973972_30323.cpp:7:1: error: stray '\242' in program
0_0_15973972_30323.cpp:7:1: error: stray '\346' in program
0_0_15973972_30323.cpp:7:1: error: stray '\230' in program
0_0_15973972_30323.cpp:7:1: error: stray '\257' in program
0_0_15973972_30323.cpp:7:1: error: stray '\351' in program
0_0_15973972_30323.cpp:7:1: error: stray '\222' in program
0_0_15973972_30323.cpp:7:1: error: stray '\210' in program
0_0_15973972_30323.cpp:7:1: error: stray '\345' in program
0_0_15973972_30323.cpp:7:1: error: stray '\257' in program
0_0_15973972_30323.cpp:7:1: error: stray '\271' in program
0_0_15973972_30323.cpp:7:1: error: stray '\346' in program
0_0_15973972_30323.cpp:7:1: error: stray '\211' in program
0_0_15973972_30323.cpp:7:1: error: stray '\200' in program
0_0_15973972_30323.cpp:7:1: error: stray '\346' in program
0_0_15973972_30323.cpp:7:1: error: stray '\234' in program
0_0_15973972_30323.cpp:7:1: er
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