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G. Path Queries time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given a weighted 阅读全文
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Subsequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10796 Accepted Submission(s): 3613 Pr 阅读全文
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Colorful Tree Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 3373 Accepted Submission(s): 1461 阅读全文
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lines Time Limit: 5000/2500 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2432 Accepted Submission(s): 1032 Problem D 阅读全文
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1031: [JSOI2007]字符加密Cipher Description 喜欢钻研问题的JS同学,最近又迷上了对加密方法的思考。一天,他突然想出了一种他认为是终极的加密办法 :把需要加密的信息排成一圈,显然,它们有很多种不同的读法。例如下图,可以读作: JSOI07 SOI07J OI07JS 阅读全文