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  1. #include <stdlib.h>
  2. #include <iostream>
  3. using namespace std;
  4. void r(char s, char e, int n, char* c,int k){
  5.     for (char i=s; i<=e; i++) {
  6. 		c[k] = i;
  7. 		if (n>k+1) r(s,e,n,c,k+1);
  8. 		cout << c << endl;
  9. 	}
  10. 	c[k] = '\0';
  11. }
  12. void func(char s, char e, int n){
  13. 	char* c = (char*)malloc(n+1);
  14. 	c[n] = '\0';
  15. 	r(s,e,n,c,0);
  16. 	free(c);
  17. }
  18. int main(){
  19. 	func('a', 'c', 3);
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 3028KB
comments (?)
stdin 
Standard input is empty
stdout 
aaa
aab
aac
aa
aba
abb
abc
ab
aca
acb
acc
ac
a
baa
bab
bac
ba
bba
bbb
bbc
bb
bca
bcb
bcc
bc
b
caa
cab
cac
ca
cba
cbb
cbc
cb
cca
ccb
ccc
cc
c
https://ideone.com/cM6zMB
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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