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10628. Count on a treeProblem code: COTYou are given a tree with N nodes.The tree nodes are numbered from 1 to N.Each node has an integer weight.We wi... 阅读全文
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1557. Can you answer these queries IIProblem code: GSS2Being a completist and a simplist, kid Yang Zhe cannot solve but get Wrong Answer from most of... 阅读全文
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Clear All of Them ITime Limit: 2000/1000 MS (Java/Others)Memory Limit: 122768/62768 K (Java/Others)Total Submission(s): 1455Accepted Submission(s): 48... 阅读全文