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1095 Cars on Campus (30 分)Zhejiang University has 8 campuses and a lot of gates. From each gate we can collect the in/out times and the plate numbers of the cars crossing the gate. Now with all the information available, you are supposed to tell, at any s

1160 Forever1160 Forever (20 分)Input Specification:Output Specification:Sample Input:Sample Output:题意思路技巧谬误代码1160 Forever (20 分)“Forever number” is a positive integer AAA with KKK digits, satisfying the following constrains:the sum of all the digits of

1151 LCA in a Binary Tree (30 分)The lowest common ancestor (LCA) of two nodes U and V in a tree is the deepest node that has both U and V as descendants.Given any two nodes in a binary tree, you are supposed to find their LCA.Input Specification:Each i