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  1. #include<iostream>
  2. #include<string.h>
  3. #include<algorithm>
  4. using namespace std;
  5.  
  6. void rec(char * inp, char* outp, int i, int j){
  7. 	//base case
  8. 	if(inp[i]=='\0'){
  9. 		outp[j]='\0';
  10. 		if(outp<inp){
  11. 	     cout<<outp<<endl;
  12. 		}	 
  13. 	}
  14. 	//
  15. 	for(int k=i;inp[k]!='\0';k++){
  16. 		swap(inp[i],inp[k]);
  17. 		outp[j]=inp[i];
  18. 		rec(inp,outp,i+1,j+1);
  19. 		swap(inp[i],inp[k]);
  20. 	}
  21. }
  22.  
  23. int main() {
  24. 	char inp[100],outp[100];
  25. 	cin>>inp;
  26. 	sort(inp,inp+strlen(inp));
  27. 	rec(inp,outp,0,0);
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 4392KB
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https://ideone.com/SPNFvX
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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