#include<stdio.h>
#include<math.h>
void calculatePower(double*base,double*exponent){
    if(*base<0||*base>10||*exponent<0||*exponent>10){
        printf("invalid input.\n");
    }else{
        double result=pow(*base,*exponent);
        printf("Power usage:%.2If\n",result);
    }    
}
int main(){
    double base,exponent;
    printf("enter base value(0 to 10):"value(0 to 10):");
    scanf("%If", &base);
    printf("enter exponent value (0 to 10)":"value(0 to 10):");
    scanf("%If", &exponent);
    calculatePower(&base,&exponent);
    return 0;
  }