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C. Producing Snow time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alice likes snow a lot! 阅读全文
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There are a group of students. Some of them may know each other, while others don't. For example, A and B know each other, B and C know each other. Bu 阅读全文
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ZOJ Monthly, March 2018 Happy Sequence Input There are multiple test cases. The first line of the input contains an integer (about 50), indicating the 阅读全文
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Input Output For each test case output one line containing one integer, indicating the integer which appears in both sequences. Sample Input Sample Ou 阅读全文
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The bored BaoBao is playing a number game. In the beginning, there are numbers. For each turn, BaoBao will take out two numbers from the remaining num 阅读全文
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Oleg writes down the history of the days he lived. For each day he decides if it was good or bad. Oleg calls a non-empty sequence of days a zebra, if 阅读全文
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Hacker Zhorik wants to decipher two secret messages he intercepted yesterday. Yeah message is a sequence of encrypted blocks, each of them consists of 阅读全文