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E. Editor "题目链接" time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output The development of a text ed 阅读全文
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"题目链接" Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others. One day, there is another tribe become the 阅读全文
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"题目链接" Problem Description Consider a un rooted tree T which is not the biological significance of tree or plant, but a tree as an undirected graph in 阅读全文
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Lpl and Energy saving Lamps "题目链接" During tea drinking, princess, amongst other things, asked why has such a good natured and cute Dragon imprisoned L 阅读全文
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C Insertion Sort(数学规律题, 递推) Insertion sort is a simple sorting algorithm that builds the final sorted array one item at an iteration. More precisely, 阅读全文
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Secret Poems "原题链接" The Yongzheng Emperor (13 December 1678 – 8 October 1735), was the fifth emperor of the Qing dynasty of China. He was a very hard 阅读全文