View Compilation Error

0_0_30600384_32110.cpp: In function 'double dist(node, node)':
0_0_30600384_32110.cpp:26:54: error: expression cannot be used as a function
     return sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)(a.y-b.y));
                                                      ^
0_0_30600384_32110.cpp: In function 'int main()':
0_0_30600384_32110.cpp:69:53: error: expected ')' before ';' token
                 printf("%lf %lf %lf\n",tmp.x,tmp.y,r;
                                                     ^