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sscanf好好用啊

Posted by llyanwenyuan at 2012-02-27 20:07:14 on Problem 1463 
先用scanf读入一个字符串，遇到空格停止读入，再用sscanf读入根节点和儿子节点的数目。
如0:(1) 1
scanf("%s", str);
此时str为0:(1)， 再sscanf(str, "%d:(%d", &root, &num);
root = 0, num = 1;       ok!
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