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  1. #include <iostream>
  2. #include<string.h>
  3. #include<stdlib.h>
  4. using namespace std;
  5. int count = 1;
  6. void swap (char *a, char *b)
  7. {
  8. 	char temp;
  9. 	temp = *a;
  10. 	*a = *b;
  11. 	*b = temp;
  12. }
  13. int permute(string a, int l, int r,string b)
  14. {
  15. 	int i;
  16. 	if(l==r)
  17. 	{
  18. 		if(a == b){
  19. 			cout<<"\n"<<count;	
  20. 		}
  21. 		count++;
  22. 	}
  23. 	else
  24. 	{
  25. 		for(i=l;i<=r;i++)
  26. 		{
  27. 			swap(a[l],a[i]);
  28. 			permute(a, l+1, r, b);
  29. 			swap(a[l],a[i]);
  30. 		}
  31. 	}
  32. }
  33. string sort(string a, int n)
  34. {
  35. 	int i,j;
  36. 	for(i=0;i<n-1;i++)
  37. 	{
  38. 		for(j=0;j<n-i-1;j++)
  39. 		{
  40. 			if(a[j]>a[j+1])
  41. 			{
  42. 				swap(a[j],a[j+1]);
  43. 			}
  44. 		}
  45. 	}
  46. 	return a;
  47. }
  48.  
  49. int main() {
  50. 	string a, b;
  51. 	int k, c;
  52. 	cin>>a;
  53. 	cin>>b;
  54. 	k = a.length();
  55. 	a = sort(a,k);
  56.  
  57. 	permute(a,0,k-1,b);
  58. 	return 0;
  59. }
Success #stdin #stdout 0s 3464KB
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stdout
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https://ideone.com/TS3ZvW
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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