Programming Example
Program to calculate power using recursion
Program to calculate power using recursion
#include <stdio.h>
int power(int n1, int n2);
int main()
{
int base, powerRaised, result;
printf("Enter base number: ");
scanf("%d",&base);
printf("Enter power number(positive integer): ");
scanf("%d",&powerRaised);
result = power(base, powerRaised);
printf("%d^%d = %d", base, powerRaised, result);
return 0;
}
int power(int base, int powerRaised)
{
if (powerRaised != 0)
return (base*power(base, powerRaised-1));
else
return 1;
}Enter base number: 3
Enter power number(positive integer): 4
3^4 = 81
First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.