2018 Multi-University Training Contest 1

 http://acm.hdu.edu.cn/search.php?field=problem&key=2018+Multi-University+Training+Contest+1&source=1&searchmode=sourcephp Maximum Multiple n=x+y+z,x|n,y|n,z|n;node n=t1*x,n=t2*y,n=t3*z;ios 1/t1+1/t2+

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