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  1. /* Author haleyk10198 */
  2. /* §@ªÌ:  haleyk10198 */
  3. #include <bits/stdc++.h>
  4.  
  5. #define MOD 1000000007
  6. #define LINF (1LL<<60)
  7. #define INF 2147483647
  8. #define PI 3.1415926535897932384626433
  9. #define ll long long
  10. #define pii pair<int,int>
  11. #define mp(x,y) make_pair((x),(y))
  12.  
  13. using namespace std;
  14.  
  15. string itos(int x){
  16. 	stringstream ss;
  17. 	ss<<x;
  18. 	return ss.str();
  19. }
  20.  
  21. void f(int now, int dx){
  22. 	if(now == 1){
  23. 		cout << string(dx, ' ') + "*" << endl
  24. 			 << string(dx, ' ') + "**" << endl
  25. 			 << string(dx+1, ' ') + "*" << endl;
  26. 		return;
  27. 	}
  28. 	f(now - 1, dx);
  29. 	cout << string(dx, ' ') + string(2*now, '*') << endl;
  30. 	f(now - 1, dx + now);
  31. }
  32.  
  33. int n;
  34.  
  35. int main(){
  36. 	//freopen("input.txt","r",stdin);
  37. 	//freopen("output.txt","w",stdout);
  38. 	ios_base::sync_with_stdio(false);
  39. 	cin >> n;
  40. 	f(n, 0);
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0s 3472KB
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stdin
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*
**
 *
****
  *
  **
   *
******
   *
   **
    *
   ****
     *
     **
      *
https://ideone.com/Y4ilkV
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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