hdu_1030(数学题+找规律)

规律就是两个数字的level差+left差+right差

代码：

 #include<cstdio>
 #include<iostream>
 #include<cstring>
 #include<algorithm>
 #include<cmath>
 using namespace std;
 int main()
 {
     int a,b;
     while(~scanf("%d%d",&a,&b))
     {
         int i1,i2,j1,j2;
         int left1,left2,right1,right2;
         i1 = sqrt(a-)+;j1 = a-(i1-)*(i1-);
         i2 = sqrt(b-)+;j2 = b-(i2-)*(i2-);
         left1 = j1/+j1%; left2 = j2/+j2%;
         right1 = (*i1-j1)/+(*i1-j1)%; right2 = (*i2-j2)/+(*i2-j2)%;
         int ans = abs(i1-i2)+abs(left1-left2)+abs(right1-right2);
        // printf("i1 = %d; i2 = %d; j1 = %d; j2 = %d; left1 = %d; left2 = %d; right1 = %d; right2 = %d;\n",i1,i2,j1,j2,left1,left2,right1,right2);
         printf("%d\n",ans);
     }
     return ;
 }