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CheerleadersDescriptionCCheerleadersIn most professional sporting events, cheerleaders play a major role in entertaining the spe... 阅读全文
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Sharing ChocolateChocolate in its many forms is enjoyed by millions of people around the world every day. It is a truly universal ca... 阅读全文
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Placing LamppostsDescriptionInputAs a part of the mission ‘Beautification of Dhaka City’, the government has decided to replace al... 阅读全文
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Double Shortest PathsAlice and Bob are walking in an ancient maze with a lot of caves and one-way passages connectingthem. They want... 阅读全文