很巧妙,不严密。假设W和M之间,女赢了m场。可以推出:m=n(17n-3)/8,加上m<=2n*n=2n^2.
这两个式子推出n<=3.m必须是整数。n只能是3.
很巧妙,不严密。假设W和M之间,女赢了m场。可以推出:m=n(17n-3)/8,加上m<=2n*n=2n^2.
这两个式子推出n<=3.m必须是整数。n只能是3.
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