View Compilation Error

0_0_17448050_14030.cpp: In function 'int main()':
0_0_17448050_14030.cpp:14:25: error: expression in new-declarator must have integral or enumeration type
   double *b=new double [n];
                         ^
0_0_17448050_14030.cpp:15:25: error: expression in new-declarator must have integral or enumeration type
   double *c=new double [m];
                         ^