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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int ans;
  5.  
  6. void rec(int pos, int before, string bil) {
  7. 	if (pos>10){
  8. 		ans++;
  9.  
  10. 		//hapus comment di bawah untuk melihat hasil bilangannya
  11. 		//cout << bil << endl;
  12. 	}
  13. 	else {
  14. 		for(int i=before; i<=9; i++)
  15. 			rec(pos+1, i, bil+to_string(i));
  16. 	}
  17. }
  18.  
  19. int main () {
  20. 	ans = 0;
  21. 	rec(1, 0, "");
  22. 	cout << ans << endl;
  23. 	return 0;
  24. }
Success #stdin #stdout 0.03s 4504KB
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92378
https://ideone.com/siibIe
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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