zoj 1242 Carbon Dating 纠结

这道题纠结死了...很早就看到了,就是a不了,今天照着网上搜的代码一点点改,最后发现scanf里边得用%lf %lf 真纠结,像这种高精度的题真烦人

 

#include <stdio.h>#include <math.h>int main(void){int count=0;double n,m;double k,result;while (scanf("%lf %lf",&n,&m) != EOF && n){ printf("Sample #%d/n",++count);k = m/n/810.0;k = log(k);result = (k/log(0.5)) * 5730.0;if (result<10000) { result = (int)(result/100.0 +0.5); result *= 100.0; } else { result = (int)(result/1000.0+0.5); result *= 1000.0; } printf("The approximate age is %.lf years./n/n",result);}return 0;}