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不要贴ac codeIn Reply To:我也提供代码 多谢前面那位提供代码的兄弟 Posted by:gemenhao at 2006-03-17 18:15:09 给别人独立思考的机会
> #include<stdio.h>
> #include<math.h>
> #define zero 1e-6
> typedef long long l64;
> int powb(l64 t,l64 x)
> {
> if(2==t%4)
> return 1;
> int b=2,p=1,a=1;
> if(t%5==2||t%5==3||x<0)
> a=2;
> for(int i=a+1;b>1;i+=a)
> {
> b = (int)(pow(t,1.0/i)+zero);
> if(fabs(pow(b,i)-t)<zero)
> p = i;
> }
> return p;
> }
>
> int main()
> {
> l64 x;
> while(scanf("%I64d",&x) && x)
> printf("%d\n",powb(x>0?x:-x,x));
> return 0;
> }
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