浪尖取水饮 @ 2018-11-24 18:50:55
int main () { int k,n=1; float s=0.0; scanf ("%d",&k); for (;s<=k;n++) s=s+1.0/n; printf ("%d",n-1); }
by 浪尖取水饮 @ 2018-11-24 18:53:16
啊，抱歉第一次用，发错了
by 浪尖取水饮 @ 2018-11-24 18:53:50
啊，抱歉第一次用，发错了```
int main ()
{ int k,n=1;
float s=0.0;
scanf ("%d",&k);
for (;s<=k;n++)
s=s+1.0/n;
printf ("%d",n-1);
}by Reaepita @ 2018-11-24 18:58:07
@莉亚的C3PO 最后答案不需要-1吧
by 浪尖取水饮 @ 2018-11-24 19:36:26
@Harry_bh 要的啊
by 南极的太阳 @ 2018-11-28 12:19:34
float的有效数字位只有6至7位，当n比较大时，就超出范围了，要用double。