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[Codeforces Round 629 (Div. 3)] D. Carousel （分类讨论） D. Carousel time limit per test 2 seconds memory limit per test 256 megabytes input standard input 阅读全文
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[Codeforces Round 498 (Div. 3)] F. Xor Paths （折半搜索） F. Xor Paths time limit per test 3 seconds memory limit per test 256 megabytes input standard inpu 阅读全文
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Best Reward [HDU 3613 ] （manacher算法） "HDU 3613 " After an uphill battle, General Li won a great victory. Now the head of state decide to reward him wi 阅读全文
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[Educational Codeforces Round 72] A. Creating a Character （简单数学） A. Creating a Character time limit per test 1 second memory limit per test 256 megaby 阅读全文
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[Codeforces Round 624 (Div. 3)] E. Construct the Binary Tree （构造二叉树） E. Construct the Binary Tree time limit per test 2 seconds memory limit per test 阅读全文
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[Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics)] D. Present（异或性质，按位拆分，双指针） D. Present time limit per test 3 seconds memor 阅读全文
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[Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics)] D. Present（异或性质，按位拆分，树桩数组） D. Present time limit per test 3 seconds memo 阅读全文
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[Educational Codeforces Round 83 ] E. Array Shrinking (区间DP) E. Array Shrinking time limit per test 2 seconds memory limit per test 256 megabytes inpu 阅读全文
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[AtCoder Beginner Contest 158] F Removing Robots （线段树+DP） Problem Statement There are NN robots numbered 11 to NN placed on a number line. Robot ii is 阅读全文
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[CodeCraft 20 (Div. 2)] E. Team Building （状压DP） E. Team Building time limit per test 3 seconds memory limit per test 256 megabytes input standard inpu 阅读全文