fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int power(int x, int y){
  4. 	//x**y
  5. 	if(y==0) return 1;
  6. 	else return power(x,y-1)*x;
  7. }
  8.  
  9. int fastpower(int x, int y){
  10. 	if (y==0) return 1;
  11. 	else if((y%2)==0) return fastpower(x*x,y/2);
  12. 	else return x* fastpower(x*x,(y)/2);
  13.  
  14. }
  15.  
  16. int main(void){
  17. 	int x;
  18. 	int y;
  19. 	scanf("%d %d",&x,&y);
  20. 	printf("%d",power(x,y));
  21. 	printf(" %d",fastpower(x,y));
  22.  
  23. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
copy 
5 2
stdout
copy 
25 25
https://ideone.com/f9upi6
language:
C (gcc 8.3)
created:
16 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!