1894031_tle.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>
# include <math.h>

int main()
{
 int n, mark;
 __int64 i, j, q;
 char t, ch[10];
 double p;

 scanf("%d%s",&n,ch);

 for(i = 0; ; i++)
 {
  mark = 1;
  p = sqrt(i);
  for(j = 0; j < n; j++)
   {
    q = p*pow(10,j+1);
    q%=10;
    t = q + '0';
    if(ch[j]!=t)
     {
      mark = 0; break;
     }
     }
     if(mark) {printf("%I64d\n",i);break;}
 }
 return 1;
}