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Re:其实这道题可以用这个公式In Reply To:Re:其实这道题可以用这个公式 Posted by:AB38017032 at 2012-07-30 15:44:52 先打表,再算 #include <stdio.h> #include <math.h> int a[10000001]={0}; int main() { int n,len,j,m; double i,sum=0.0; for(i=1.0;i<10000001;i++) { sum+=log10(i); a[(int)(i)]=(int)(sum)+1; } scanf("%d",&n); /*sum=0.0; for(i=1.0;i<=(double)(n);i++) sum+=log10(i); len=(int)(sum)+1;*/ for(j=0;j<n;j++) { scanf("%d",&m); printf("%d\n",a[m]); } return 0; } Followed by: Post your reply here: |
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