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为什么我的程式老是wrong answer?想不明白啊#include<stdio.h> #include<math.h> #define pi 3.14159 double rad(double x,double y) { double s; for(s=0;;s=s+0.0001) if(pow(s,y)>x) break; return s; } main() { double D,d,v,i,j,s; while(scanf("%lf%lf",&D,&v)&&D||v) { if(v>pow(D,3)*pi/4) break; s=pow(D,3)-(6*v/pi); d=rad(s,3); printf("%.3lf\n",d); } } Followed by:
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