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2065. Different Sums Time limit: 1.0 secondMemory limit: 64 MB Alex is a very serious mathematician and he likes to solve serious problems. For exampl 阅读全文
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2064. Caterpillars Time limit: 3.0 secondMemory limit: 64 MB Young gardener didn’t visit his garden for a long time, and now it’s not very pleasant th 阅读全文
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2063. Black and White Time limit: 1.0 secondMemory limit: 64 MB Let’s play a game. You are given a row of n balls, each ball is either black or white. 阅读全文
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2062. Ambitious Experiment Time limit: 3.0 secondMemory limit: 128 MB During several decades, scientists from planet Nibiru are working to create an e 阅读全文