The entire number of times the value of the offer is indicated by the sword

The title describes the integer exponent of the floating-point base and int type given a double type. The exponent of the base of the second party. Idea: To consider the boundary, 0, negative AC code:

1 classSolution {2  Public:3     DoublePower (Double Base,intexponent) {4         Doublex=1;5          for(intI=0; I<abs (exponent); i++)6         {7x*=Base;8         }9         if(exponent<0)Ten             return 1/x; One         Else A             returnx;  -     } -};

The entire number of times the value of the offer is indicated by the sword