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害怕精度出问题，没敢用power或者log函数

Posted by Ruby931031 at 2012-09-14 17:18:32 on Problem 1730 
动手写了一个分解整数求最大公因数的程序，结果一直TLE……
然后加了一句if (x==(1<<31))	{ printf("31\n"); continue;}就AC了……
这数据太贱了……不仅有负数还有INT_MIN！！~
被坑了TAT~
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