Volume 6. Mathematical Concepts and Methods

138 - Street Numbers

 #include <stdio.h>
 //(2n+1)^2 - 8m^2 = 1，佩尔函数，或者打表
 int main() {
     int count = ;
     int x1 = , xi = , y1= , yi = , n = , txi;
     while (count++ < )
     {
         txi = xi;
         xi = x1 * xi + n * y1 * yi;
         yi = x1 * yi + y1 * txi;
         printf("%10d%10d\n", yi, (xi - ) / );
     }
     return ;
 }