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G. Game With Triangles: Season 2 There is a regular polygon with $n$ sides ($n \ge 3$). The vertices are indexed as $1,2,\ldots,n$ in clockwise order. 阅读全文
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G. I've Been Flipping Numbers for 300 Years and Calculated the Sum After three hundred years of slime farming, Akito finally obtained the magical numb 阅读全文
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Check If Digits Are Equal in String After Operations II You are given a string s consisting of digits. Perform the following operation repeatedly unti 阅读全文
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D. Eating There are $n$ slimes on a line, the $i$-th of which has weight $w_i$. Slime $i$ is able to eat another slime $j$ if $w_i \geq w_j$; afterwar 阅读全文
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H. Bro Thinks He's Him Skibidus thinks he's Him! He proved it by solving this difficult task. Can you also prove yourself? Given a binary string$^{\te 阅读全文