C++ Pattern Programs

In this tutorial, you will learn how to write a C++ Program to print patterns using looping statements.

C++ Programs – Pattern Printing

1. Pattern – Right Triangle

In this example, we will write a C++ program to print the following start pattern to console. We shall read the number of rows from user and print start pattern.

Pattern

For an input number of 4, following would be the pattern.

*
* *
* * *
* * * *

main.cpp

#include <iostream>
using namespace std;

int main() {
    int n;
    cout << "Enter first number  : ";
    cin >> n;
    
    int i = 1;
    while (i <= n) {
        int j = 1;
        while (j <= i) {
            cout << "* ";
            j++;
        }
        cout << endl;
        i++;
    }
}

Inner while loop prints a single row. Outer while loop helps to print n number of rows.

In other words, outer while loop prints the rows, while inner while loop prints columns in each row.

Output

Enter first number  : 5
* 
* * 
* * * 
* * * * 
* * * * * 
Program ended with exit code: 0

Enter first number  : 7
* 
* * 
* * * 
* * * * 
* * * * * 
* * * * * * 
* * * * * * * 
Program ended with exit code: 0

2. Pattern – Inverted Right Triangle

In this example, we will write a C++ program to print the following start pattern to console.

Pattern

For an input number of 4, following would be the pattern.

* * * *
* * *
* *
*

main.cpp

#include <iostream>
using namespace std;

int main() {
    int n;
    cout << "Enter first number  : ";
    cin >> n;
    
    int i = 1;
    while (i <= n) {
        int j = n;
        while (j >= i) {
            cout << "* ";
            j--;
        }
        cout << endl;
        i++;
    }
}

Output

Enter first number  : 5
* * * * * 
* * * * 
* * * 
* * 
* 
Program ended with exit code: 0

Enter first number  : 8
* * * * * * * * 
* * * * * * * 
* * * * * * 
* * * * * 
* * * * 
* * * 
* * 
* 
Program ended with exit code: 0

3. Pattern – Number Triangle

In this program, we will print a number triangle.

Pattern

For an input number of 5, following would be the pattern.

  1
  2   3
  4   5   6
  7   8   9  10
 11  12  13  14  15

main.cpp

#include <iostream>
using namespace std;

int main() {
    int n;
    cout << "Enter first number  : ";
    cin >> n;
    
    int i = 1, k = 1;
    while (i <= n) {
        int j = 1;
        while (j <= i) {
            cout << k << "\t";
            j++;
            k++;
        }
        cout << endl;
        i++;
    }
}

Output

Enter first number  : 4
1	
2	3	
4	5	6	
7	8	9	10	
Program ended with exit code: 0

Enter first number  : 8
1	
2	3	
4	5	6	
7	8	9	10	
11	12	13	14	15	
16	17	18	19	20	21	
22	23	24	25	26	27	28	
29	30	31	32	33	34	35	36	
Program ended with exit code: 0

More C++ Pattern Programs

Basic Star Patterns

1. How to Print a Square Star Pattern in C++
2. How to Print a Right-Angled Triangle Star Pattern in C++
3. How to Print an Inverted Right-Angled Triangle Star Pattern in C++
4. How to Print a Pyramid Star Pattern in C++
5. How to Print an Inverted Pyramid Star Pattern in C++
6. How to Print a Diamond Star Pattern in C++
7. How to Print a Hollow Square Star Pattern in C++
8. How to Print a Hollow Triangle Star Pattern in C++
9. How to Print a Hollow Pyramid Star Pattern in C++
10. How to Print a Hollow Diamond Star Pattern in C++

Number Patterns

11. How to Print a Half Pyramid Number Pattern in C++
12. How to Print an Inverted Half Pyramid Number Pattern in C++
13. How to Print a Full Pyramid Number Pattern in C++
14. How to Print a Floyd’s Triangle Pattern in C++
15. How to Print a Pascal’s Triangle Pattern in C++
16. How to Print a Diamond Number Pattern in C++
17. How to Print an Hourglass Number Pattern in C++
18. How to Print a Hollow Diamond Number Pattern in C++
19. How to Print a Mirrored Right-Angled Triangle Number Pattern in C++
20. How to Print a Centered Triangle Number Pattern in C++

Alphabet Patterns

21. How to Print an A to Z Alphabet Pyramid Pattern in C++
22. How to Print an Alphabet Diamond Pattern in C++
23. How to Print an Inverted Alphabet Pyramid in C++
24. How to Print an Alphabet Hourglass Pattern in C++
25. How to Print a Hollow Alphabet Triangle Pattern in C++
26. How to Print a Mirrored Alphabet Pyramid in C++
27. How to Print an Alphabet Hollow Diamond in C++
28. How to Print a Butterfly Alphabet Pattern in C++
29. How to Print an Alphabet Zigzag Pattern in C++
30. How to Print an Alphabet Stairs Pattern in C++

Complex and Special Patterns

31. How to Print a Butterfly Star Pattern in C++
32. How to Print an X Star Pattern in C++
33. How to Print a Cross Star Pattern in C++
34. How to Print a Plus (+) Star Pattern in C++
35. How to Print a Hollow X Star Pattern in C++
36. How to Print a Spiral Number Pattern in C++
37. How to Print a Hollow Rhombus Pattern in C++
38. How to Print a Pascal’s Triangle Using Stars in C++
39. How to Print a Heart Shape Star Pattern in C++
40. How to Print a Zig-Zag Star Pattern in C++

Binary and Alternate Patterns

41. How to Print a Binary Triangle Pattern in C++
42. How to Print a Binary Pyramid Pattern in C++
43. How to Print an Alternate 0-1 Triangle Pattern in C++
44. How to Print an Increasing Number Triangle Pattern in C++
45. How to Print an Even-Odd Pyramid Pattern in C++
46. How to Print a Fibonacci Triangle Pattern in C++
47. How to Print a Hollow Square with Digits Pattern in C++
48. How to Print a Star-Number Mixed Pyramid Pattern in C++
49. How to Print a Half Diamond Star-Number Pattern in C++
50. How to Print a V Shape Star Pattern in C++

Conclusion

In this C++ Tutorial, we learned to write C++ Programs to print different types of patterns.