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  1. #include <iostream>
  2. #define STAR_WIDTH 7
  3. #define TREE_WIDTH 10
  4. #define TRUNK_WIDTH 3
  5. #define TRUNK_HEIGHT 3
  6. #define DISPLAY_WIDTH 25
  7.  
  8. using namespace std;
  9.  
  10. void triangle(int base) {
  11. 	int initial_width = base%2;
  12. 	if (initial_width == 0) initial_width = 2;
  13.       for (int i = initial_width; i <= base; i+=2) {
  14.             for (int j=0; j<(DISPLAY_WIDTH-i)/2; j++) {
  15.                   cout << " ";
  16.             }
  17.             for (int j=0; j<i; j++) {
  18.                   cout << "*";
  19.             }
  20.             cout << "\n";
  21.       }
  22. }
  23.  
  24. void rectangle(int height, int width) {
  25.       for (int i=0; i<height; i++) {
  26.             for (int j=0; j<(DISPLAY_WIDTH-width)/2; j++) {
  27.                   cout << " ";
  28.             }
  29.             for (int j=0; j<width; j++) {
  30.                   cout << "*";
  31.             }
  32.             cout << "\n";
  33.       }
  34. }
  35.  
  36. int main() {
  37.       triangle(STAR_WIDTH);
  38.       triangle(TREE_WIDTH);
  39.       rectangle(TRUNK_WIDTH, TRUNK_HEIGHT);
  40.       return 0;
  41. }
Success #stdin #stdout 0s 3468KB
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stdin
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Standard input is empty
stdout
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            *
           ***
          *****
         *******
           **
          ****
         ******
        ********
       **********
           ***
           ***
           ***
https://ideone.com/tUHV09
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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