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Kangaroo | HackerRank

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You are choreographing a circus show with various animals. For one act, you are given two kangaroos on a number line ready to jump in the positive direction (i.e, toward positive infinity). The first kangaroo starts at location   and moves at a rate of   meters per jump. The second kangaroo starts at location   and moves at a rate of   meters per jump. You have to figure out a way to get both kangaroos at the same location at the same time as part of the show. If it is possible, return  YES , otherwise return  NO . For example, kangaroo   starts at   with a jump distance   and kangaroo   starts at   with a jump distance of  . After one jump, they are both at  , ( ,  ), so our answer is  YES . Function Description Complete the function  kangaroo  in the editor below. It should return  YES  if they reach the same position at the same ...
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Finding Vaccines | HackerEarth

You are creating a vaccine to fight against a worldwide novel pandemic virus. A vaccine contains a weakened virus that is injected inside people to produce antibodies to let it fight against the virus. The study of interaction among RNA of various viruses is quite necessary for this. An RNA consists of four types of molecules Guanine ( G ), Adenine ( A ), Cytosine ( C ), and Uracil ( U ). You are given the structures of RNA for the pandemic virus and several vaccine viruses in the form of strings containing characters  G ,  A ,  C , and  U  representing respective molecules. You know that if there is higher interaction between the pandemic virus and vaccine virus, then better the vaccine will be. You also know that the only interaction between any two RNAs is a result of the interaction between their Guanine ( G ) and Cytosine ( C ) molecules. Formally, if the strings for RNA structures are  s ...
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