Write a C program to calculate the power of a number

Questions:

How to find power of a number in C programming language.

Write a program in C to calculate the power of a number using while loop.

#include
#include
void main(){
  int pow,num,i=1;
  clrscr();
  long int sum=1;
  printf(" \nEnter a number: ");
  scanf("%d",&num);
  printf(" \nEnter the power of number: ");
  scanf("%d",&pow);
  while(i<=pow){
            sum=sum*num;
            i++;
  }
  printf(" \n%d to the power %d is: %ld",num,pow,sum);
  getch();
}

Examples

For Example: Let the number be 5 and the power be 3, than according to the c program mentioned above to find the power of a number the output is 125.