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Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges' favorite time is guessing the most popula 阅读全文
posted @ 2017-03-11 20:43
琴影
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Give a natural number n (1 <= n <= 500000), please tell the summation of all its proper divisors. Definition: A proper divisor of a natural number is 阅读全文
posted @ 2017-03-11 20:27
琴影
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Among grandfather��s papers a bill was found: 72 turkeys $_679_ The first and the last digits of the number that obviously represented the total price 阅读全文
posted @ 2017-03-11 20:17
琴影
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As part of an arithmetic competency program, your students will be given randomly generated lists of from 2 to 15 unique positive integers and asked t 阅读全文
posted @ 2017-03-11 20:05
琴影
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1 typedef struct node{ 2 int val; 3 struct node *left, *right; 4 }TreeNode; 5 //求二叉树的节点个数。 6 int GetNodeNum(TreeNode *pRoot){ 7 if(pRoot == NULL) 8 return 0; 9 ... 阅读全文
posted @ 2017-03-11 19:47
琴影
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题目1184：二叉树遍历 时间限制：1 秒 内存限制：32 兆 特殊判题：否 提交：4167 解决：1690 题目描述： 编一个程序，读入用户输入的一串先序遍历字符串，根据此字符串建立一个二叉树（以指针方式存储）。例如如下的先序遍历字符串：ABC##DE#G##F###其中“#”表示的是空格，空格字 阅读全文
posted @ 2017-03-11 17:03
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