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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int rows=6;
  7. 	int cols=4;
  8. 	//printing half pyramid using *
  9. 	for( int i = 0; i < rows; i++ ) {
  10.         for( int j = 0; j <= i; j++ ){
  11.             cout << "*  ";
  12.         }
  13.         cout<<endl;
  14.     }
  15.  
  16.     //using numbers
  17.         for( int i = 0; i < rows; i++ ) {
  18.         for( int j = 0; j <= i; j++ ){
  19.             cout << i + 1 << " ";
  20.         }
  21.         cout<<endl;
  22.     }
  23.  
  24.     //usimg alphabets
  25.     for( int i = 0; i < rows; i++ ) {
  26.         for( int j = 0; j <= i; j++ ){
  27.             cout << (char)('A' + j) << " ";
  28.         }
  29.         cout<<endl;
  30.     }
  31.  
  32.      // Main logic to print Rectangle. 
  33.     for( int i = 0; i < rows; i++ ) {
  34.         for( int j = 0; j < cols; j++ ){
  35.             cout << "* ";
  36.         }
  37.         cout<<endl;
  38.     }
  39.  
  40.       // Main logic to print hollow rectangle. 
  41.   for (int i = 0; i < rows; i++) {
  42.     for (int j = 0; j < cols; j++) {
  43.  
  44.       // If the index is at the border, then print *. 
  45.       if (i == 0 || i == rows - 1 || j == 0 || j == cols - 1)
  46.         cout << "* ";
  47.       else
  48.         cout << "  ";
  49.     }
  50.     cout << endl;
  51.   }
  52.  
  53.   // Main logic to print Floyd's Triangle. 
  54.     int counter = 1; 
  55.     for( int i = 0; i < rows; i++ ) {
  56.         for( int j = 0; j <= i; j++ ){
  57.             cout << (counter++) << " ";
  58.         }
  59.         cout << endl;
  60.     }
  61.  
  62.      // Main logic to print the Butterfly pattern.
  63.     // Printing upper part.
  64.     for( int i = 0; i <= rows; i++ ){
  65.         // Print left side stars.
  66.         for( int j = 0; j <= i; j++ ){
  67.             cout << "* ";
  68.         }
  69.  
  70.         // Print spaces.
  71.         int spaces = 2 * (rows - i);
  72.         for( int j = 0; j < spaces; j++){
  73.             cout << "  ";
  74.         }
  75.  
  76.         // Print right side stars.
  77.         for( int j = 0; j <= i; j++ ){
  78.             cout << "* ";
  79.         }
  80.  
  81.         cout << endl;
  82.     }
  83.  
  84.     // Printing bottom part.
  85.     for( int i = rows - 1; i >= 0; i-- ){
  86.  
  87.         // Print left side spaces.
  88.         for( int j = 0; j <= i; j++ ){
  89.             cout << "* ";
  90.         }
  91.  
  92.         // Print spaces.
  93.         int spaces = 2 * (rows - i);
  94.         for( int j = 0; j < spaces; j++){
  95.             cout << "  ";
  96.         }
  97.  
  98.         // Print right side stars.
  99.         for( int j = 0; j <= i; j++ ){
  100.             cout << "* ";
  101.         }
  102.              cout << endl;
  103.     }
  104.  
  105.     // Main logic to print Pascal's triangle.
  106.     for( int i = 0; i <  rows; i++){
  107.         int spaces = rows - i;
  108.         // Print spaces.
  109.         for( int j = 0; j < spaces; j++){
  110.             cout<<"  ";
  111.         }
  112.  
  113.         int coefficient;
  114.         // Print values.
  115.         for( int j = 0; j <= i; j++){
  116.             // Update coefficient's value
  117.             if( j == 0 )
  118.                 coefficient = 1;
  119.             else 
  120.                 coefficient = coefficient * (i - j + 1) / j;
  121.                 cout << coefficient << "   ";
  122.         }
  123.  
  124.         cout << endl;
  125.     }
  126.     // Main logic to print full pyramid.
  127.     for( int i = 0; i < rows; i++ ) {
  128.         // Print spaces.
  129.         int spaces = rows - i;
  130.  
  131.         for( int j = 0; j < spaces; j++){
  132.             cout <<"  ";
  133.         }
  134.  
  135.         // Print stars.
  136.         for( int j = 0; j < 2 * i - 1; j++){
  137.             cout <<"* ";
  138.         }
  139.  
  140.         cout << endl;
  141.  
  142.     }
  143. 	return 0;
  144. }
Success #stdin #stdout 0s 5292KB
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stdin
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Standard input is empty
stdout
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*  
*  *  
*  *  *  
*  *  *  *  
*  *  *  *  *  
*  *  *  *  *  *  
1 
2 2 
3 3 3 
4 4 4 4 
5 5 5 5 5 
6 6 6 6 6 6 
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
* * * * 
* * * * 
* * * * 
* * * * 
* * * * 
* * * * 
* * * * 
*     * 
*     * 
*     * 
*     * 
* * * * 
1 
2 3 
4 5 6 
7 8 9 10 
11 12 13 14 15 
16 17 18 19 20 21 
*                         * 
* *                     * * 
* * *                 * * * 
* * * *             * * * * 
* * * * *         * * * * * 
* * * * * *     * * * * * * 
* * * * * * * * * * * * * * 
* * * * * *     * * * * * * 
* * * * *         * * * * * 
* * * *             * * * * 
* * *                 * * * 
* *                     * * 
*                         * 
            1   
          1   1   
        1   2   1   
      1   3   3   1   
    1   4   6   4   1   
  1   5   10   10   5   1   
            
          * 
        * * * 
      * * * * * 
    * * * * * * * 
  * * * * * * * * *
https://ideone.com/e9Wf51
language:
C++ (gcc 8.3)
created:
16 days ago
visibility:
public

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