Top 50 Pattern Programming Questions with Solutions in Python

Is article me aapko 50 best pattern programming questions milenge jo placement preparation, coding tests aur interviews ke liye useful hain. Yahan star, number, matrix, alphabet, prime, Fibonacci aur advanced patterns diye gaye hain.

Har question ke sath sample output, short logic aur Python code diya gaya hai. Aap inhe C, C++, Java ya kisi bhi language me convert kar sakte hain.

Basic Star Patterns
Number Patterns
Alphabet Patterns
Matrix Patterns
Advanced Placement Patterns

How to Practice Pattern Programming

Nested loops ko strong karo
Row aur column relation samjho
Pehle output ka dry run karo, phir code likho
Daily 5 se 10 pattern solve karo

Top 50 Pattern Programming Questions

1. Continuous Number Triangle

Number Pattern

Logic: Ek counter variable lo aur har print ke baad increment karo.

n = 4
num = 1
for i in range(1, n + 1):
    for j in range(i):
        print(num, end=" ")
        num += 1
    print()

2. Alternating Binary Triangle

Binary Pattern

Logic: Har row me alternating 0 aur 1 print karo.

n = 4
for i in range(1, n + 1):
    val = 1 if i % 2 else 0
    for j in range(i):
        print(val, end=" ")
        val = 1 - val
    print()

3. Hollow Square Star Pattern

Star Pattern

*****
*   *
*   *
*   *
*****

Logic: Border par star aur beech me spaces.

n = 5
for i in range(n):
    for j in range(n):
        if i == 0 or i == n-1 or j == 0 or j == n-1:
            print("*", end="")
        else:
            print(" ", end="")
    print()

4. X Shape Star Pattern

Star Pattern

*   *
 * *
  *
 * *
*   *

Logic: Dono diagonals par star print karo.

n = 5
for i in range(n):
    for j in range(n):
        if i == j or i + j == n - 1:
            print("*", end="")
        else:
            print(" ", end="")
    print()

5. Snake Number Matrix

Matrix Pattern

1 2 3 4
8 7 6 5
9 10 11 12
16 15 14 13

Logic: Odd row left to right, even row right to left.

n = 4
num = 1
for i in range(n):
    row = list(range(num, num + n))
    if i % 2 == 1:
        row.reverse()
    print(*row)
    num += n

6. Palindrome Pyramid Pattern

Number Pyramid

Logic: Pehle ascending, phir descending numbers print karo.

n = 4
for i in range(1, n + 1):
    print(" " * (n - i), end="")
    for j in range(1, i + 1):
        print(j, end="")
    for j in range(i - 1, 0, -1):
        print(j, end="")
    print()

7. Alphabet Triangle Pattern

Alphabet Pattern

A
B B
C C C
D D D D

Logic: Har row me ek hi character repeat karo.

n = 4
ch = 65
for i in range(1, n + 1):
    print((chr(ch) + " ") * i)
    ch += 1

8. Hourglass Star Pattern

Star Pattern

*****
 ***
  *
 ***
*****

Logic: Upper aur lower half ko symmetric rakho.

n = 5
for i in range(n):
    stars = n - 2 * min(i, n - 1 - i)
    spaces = min(i, n - 1 - i)
    print(" " * spaces + "*" * stars)

9. Concentric Number Square

Matrix Pattern

Logic: Minimum distance from border ke basis par value nikalo.

n = 3
size = 2 * n - 1
for i in range(size):
    for j in range(size):
        val = n - min(i, j, size - 1 - i, size - 1 - j)
        print(val, end=" ")
    print()

10. Full Diamond Star Pattern

Diamond Pattern

  *
 ***
*****
 ***
  *

Logic: Ek normal pyramid aur ek inverted pyramid combine karo.

n = 3
for i in range(1, n + 1):
    print(" " * (n - i) + "*" * (2 * i - 1))
for i in range(n - 1, 0, -1):
    print(" " * (n - i) + "*" * (2 * i - 1))

11. Right Aligned Star Triangle

Star Pattern

    *
   **
  ***
 ****
*****

Logic: Pehle spaces, phir stars.

n = 5
for i in range(1, n + 1):
    print(" " * (n - i) + "*" * i)

12. Inverted Number Triangle

Number Pattern

Logic: Har next row me ek number kam print karo.

n = 5
for i in range(n, 0, -1):
    for j in range(1, i + 1):
        print(j, end=" ")
    print()

13. Floyd's Triangle

Classic Pattern

Logic: Continuous numbers row-wise print hote hain.

n = 4
num = 1
for i in range(1, n + 1):
    for j in range(i):
        print(num, end=" ")
        num += 1
    print()

14. 0-1 Triangle Based on Sum of Index

Binary Pattern

Logic: Agar i+j even ho to 1, warna 0.

n = 4
for i in range(1, n + 1):
    for j in range(1, i + 1):
        print(1 if (i + j) % 2 == 0 else 0, end=" ")
    print()

15. Hollow Pyramid Star Pattern

Star Pattern

   *
  * *
 *   *
*******

Logic: Boundary par star aur last row full stars.

n = 4
for i in range(1, n + 1):
    for j in range(1, 2 * n):
        if j == n - i + 1 or j == n + i - 1 or (i == n and n-i+1 <= j <= n+i-1):
            print("*", end="")
        else:
            print(" ", end="")
    print()

16. Number Ladder Pattern

Number Pattern

Logic: Row number ko row me repeat karo.

n = 4
for i in range(1, n + 1):
    print((str(i) + " ") * i)

17. Zig-Zag Star Pattern (3 Rows)

Advanced Pattern

*   *   *
 * * * *
  *   *

Logic: Column relation ke hisab se 3 rows me stars place karo.

n = 9
for i in range(3):
    for j in range(n):
        if ((i + j) % 4 == 0) or (i == 1 and j % 4 == 2):
            print("*", end="")
        else:
            print(" ", end="")
    print()

18. Hollow Diamond Inside Square

Mixed Pattern

  *  
 * * 
*   *
 * * 
  *

Logic: Diamond outline ko center me place karo.

n = 5
mid = n // 2
for i in range(n):
    for j in range(n):
        if abs(mid - i) + abs(mid - j) == mid:
            print("*", end="")
        else:
            print(" ", end="")
    print()

19. Alphabet Palindrome Pyramid

Alphabet Pattern

  A
 ABA
ABCBA

Logic: Letters ascending aur phir reverse order me print karo.

n = 3
for i in range(n):
    print(" " * (n - i - 1), end="")
    for j in range(i + 1):
        print(chr(65 + j), end="")
    for j in range(i - 1, -1, -1):
        print(chr(65 + j), end="")
    print()

20. Cross Number Pattern

Matrix Pattern

Logic: Middle row aur middle column me 1 print karo.

n = 5
mid = n // 2
for i in range(n):
    for j in range(n):
        print(1 if i == mid or j == mid else 0, end=" ")
    print()

21. Border Stars and Diagonal Numbers

Hybrid Pattern

* * * * *
* 2   2 *
*   3   *
* 2   2 *
* * * * *

Logic: Border par star, diagonals par row-based numbers.

n = 5
for i in range(n):
    for j in range(n):
        if i == 0 or i == n-1 or j == 0 or j == n-1:
            print("*", end=" ")
        elif i == j or i + j == n - 1:
            print(i + 1, end=" ")
        else:
            print(" ", end=" ")
    print()

22. Increasing Alphabet Square

Alphabet Pattern

A B C
A B C
A B C

Logic: Har row me same alphabet sequence print karo.

n = 3
for i in range(n):
    for j in range(n):
        print(chr(65 + j), end=" ")
    print()

23. Mirrored Right Triangle

Star Pattern

*   *
** **
*****

Logic: Left aur right triangle ko spaces ke sath join karo.

n = 3
for i in range(1, n + 1):
    print("*" * i + " " * (2 * (n - i)) + "*" * i)

24. V Shape Pattern

Star Pattern

*   *
 * *
  *

Logic: Do diagonals neeche aake milti hain.

n = 5
for i in range(n // 2 + 1):
    print(" " * i + "*" + " " * (n - 2 * i - 2) + ("*" if i != n//2 else ""))

25. W Shape Pattern

Star Pattern

Logic: Four diagonals ko combine karke W banao.

n = 4
m = 4 * n - 3
for i in range(n):
    for j in range(m):
        if j == 0 or j == m-1 or j == n-1 or j == 2*n-1:
            print("*", end="")
        elif i >= n//2 and (j == i or j == m-1-i):
            print("*", end="")
        else:
            print(" ", end="")
    print()

26. Number Diamond with Center Peak

Number Pattern

Logic: Diamond shape me palindrome numbers print karo.

n = 3
for i in list(range(1, n + 1)) + list(range(n - 1, 0, -1)):
    print(" " * (n - i), end="")
    for j in range(1, i + 1):
        print(j, end="")
    for j in range(i - 1, 0, -1):
        print(j, end="")
    print()

27. Spiral Number Matrix (Clockwise)

Matrix Pattern

Logic: Top, right, bottom, left boundaries ko update karte jao.

n = 4
mat = [[0]*n for _ in range(n)]
num, top, left, bottom, right = 1, 0, 0, n-1, n-1
while top <= bottom and left <= right:
    for i in range(left, right+1):
        mat[top][i] = num; num += 1
    top += 1
    for i in range(top, bottom+1):
        mat[i][right] = num; num += 1
    right -= 1
    for i in range(right, left-1, -1):
        mat[bottom][i] = num; num += 1
    bottom -= 1
    for i in range(bottom, top-1, -1):
        mat[i][left] = num; num += 1
    left += 1
for row in mat:
    print(*row)

28. Spiral Number Matrix (Anti-Clockwise)

Matrix Pattern

Logic: Left, bottom, right, top direction follow karo.

n = 4
mat = [[0]*n for _ in range(n)]
num, top, left, bottom, right = 1, 0, 0, n-1, n-1
while top <= bottom and left <= right:
    for i in range(top, bottom+1):
        mat[i][left] = num; num += 1
    left += 1
    for i in range(left, right+1):
        mat[bottom][i] = num; num += 1
    bottom -= 1
    for i in range(bottom, top-1, -1):
        mat[i][right] = num; num += 1
    right -= 1
    for i in range(right, left-1, -1):
        mat[top][i] = num; num += 1
    top += 1
for row in mat:
    print(*row)

29. Checkerboard Pattern of 0 and 1

Binary Pattern

Logic: (i+j) even ya odd ke basis par value print karo.

n = 4
for i in range(n):
    for j in range(n):
        print((i + j) % 2, end=" ")
    print()

30. K-Shaped Number Pattern

Number Pattern

Logic: Left vertical line aur two diagonals use karo.

n = 5
for i in range(n):
    for j in range(n):
        if j == 0 or i + j == n//2 or i - j == n//2:
            print(i+1, end=" ")
        else:
            print(" ", end=" ")
    print()

31. Hollow Rectangle with Different Width and Height

Star Pattern

******
*    *
*    *
******

Logic: Rows aur columns alag lo, border par star print karo.

rows, cols = 4, 6
for i in range(rows):
    for j in range(cols):
        if i == 0 or i == rows-1 or j == 0 or j == cols-1:
            print("*", end="")
        else:
            print(" ", end="")
    print()

32. Left-aligned Number Pyramid

Number Pattern

Logic: Har row me 1 se row number tak print karo.

n = 4
for i in range(1, n + 1):
    for j in range(1, i + 1):
        print(j, end=" ")
    print()

33. Inverted Centered Pyramid

Star Pattern

*******
 *****
  ***
   *

Logic: Reverse pyramid me spaces increase aur stars decrease hote hain.

n = 4
for i in range(n, 0, -1):
    print(" " * (n - i) + "*" * (2 * i - 1))

34. Double Sided Arrow Number Pattern

Advanced Pattern

Logic: Left aur right me symmetric number blocks banao.

n = 4
for i in list(range(1, n + 1)) + list(range(n - 1, 0, -1)):
    print(" " * (n - i), end="")
    print((str(i) + " ") * i)

35. Butterfly Star Pattern

Popular Pattern

Logic: Upper aur lower wings ke liye do mirrored triangles banao.

n = 4
for i in range(1, n + 1):
    print("*" * i + " " * (2 * (n - i)) + "*" * i)
for i in range(n, 0, -1):
    print("*" * i + " " * (2 * (n - i)) + "*" * i)

36. Hollow Butterfly Pattern

Advanced Star Pattern

Logic: Butterfly pattern me sirf borders par star print karo.

n = 4
for i in range(1, n + 1):
    left = "*" if i == 1 else "*" + " " * (i - 2) + "*"
    print(left + " " * (2 * (n - i)) + left)
for i in range(n, 0, -1):
    left = "*" if i == 1 else "*" + " " * (i - 2) + "*"
    print(left + " " * (2 * (n - i)) + left)

37. Increment-Decrement Row Pattern

Number Pattern

Logic: Half me increase aur half me decrease karo.

n = 4
for i in range(1, n + 1):
    for j in range(1, i + 1):
        print(j, end="")
    for j in range(i - 1, 0, -1):
        print(j, end="")
    print()

38. Triangle of Odd Numbers

Number Pattern

1
3 5
7 9 11

Logic: Odd numbers ko continuous print karo.

n = 3
num = 1
for i in range(1, n + 1):
    for j in range(i):
        print(num, end=" ")
        num += 2
    print()

39. Triangle of Even Numbers

Number Pattern

2
4 6
8 10 12

Logic: Even numbers ko continuous order me print karo.

n = 3
num = 2
for i in range(1, n + 1):
    for j in range(i):
        print(num, end=" ")
        num += 2
    print()

40. Alphabet Snake in Matrix

Alphabet Matrix

Logic: Snake number pattern ki tarah letters fill karo.

n = 4
chars = []
ch = 65
for i in range(n * n):
    chars.append(chr(ch))
    ch = 65 if ch == 90 else ch + 1
idx = 0
for i in range(n):
    row = chars[idx:idx+n]
    if i % 2 == 1:
        row.reverse()
    print(*row)
    idx += n

41. Diamond Outline with Single Border

Star Pattern

Logic: Diamond ke sirf edge points par star print karo.

n = 3
for i in range(1, n + 1):
    print(" " * (n - i) + "*" + (" " * (2 * i - 3) + "*" if i > 1 else ""))
for i in range(n - 1, 0, -1):
    print(" " * (n - i) + "*" + (" " * (2 * i - 3) + "*" if i > 1 else ""))

42. Pyramid of Row Index

Number Pattern

Logic: Row number ko odd count me repeat karo.

n = 4
for i in range(1, n + 1):
    print(" " * (n - i) + str(i) * (2 * i - 1))

43. Zig-Zag Number Pattern

Number Pattern

Logic: Numbers ko alternate high-low order me arrange karo.

n = 9
for i in range(3):
    for j in range(n):
        if ((i + j) % 4 == 0) or (i == 1 and j % 4 == 2):
            print((j % 9) + 1, end="")
        else:
            print(" ", end="")
    print()

44. Hollow X Pattern

Star Pattern

*   *
 * *
  *
 * *
*   *

Logic: X pattern me only diagonals print karna hota hai.

n = 5
for i in range(n):
    for j in range(n):
        if i == j or i + j == n - 1:
            print("*", end="")
        else:
            print(" ", end="")
    print()

45. Increasing Border Values

Matrix Pattern

Logic: Har border layer ka alag value print karo.

n = 4
size = 2 * n - 1
for i in range(size):
    for j in range(size):
        print(max(abs(i - (n-1)), abs(j - (n-1))) + 1, end=" ")
    print()

46. Triangle with Skipped Numbers

Logic Pattern

1
4 7
10 13 16

Logic: Har next number ko fixed gap se badhao.

n = 3
num = 1
for i in range(1, n + 1):
    for j in range(i):
        print(num, end=" ")
        num += 3
    print()

47. Prime Numbers Triangle

Number Pattern

Logic: Prime check function banao aur prime numbers print karte jao.

def is_prime(x):
    if x < 2:
        return False
    for i in range(2, int(x**0.5) + 1):
        if x % i == 0:
            return False
    return True

n = 3
count, num = 1, 2
for i in range(1, n + 1):
    c = 0
    while c < i:
        if is_prime(num):
            print(num, end=" ")
            c += 1
        num += 1
    print()

48. Fibonacci Number Triangle

Fibonacci Pattern

Logic: Fibonacci sequence generate karke row-wise print karo.

n = 4
a, b = 0, 1
for i in range(1, n + 1):
    for j in range(i):
        print(b, end=" ")
        a, b = b, a + b
    print()

49. Pattern Based on ASCII Values

ASCII Pattern

A
B C
D E F

Logic: ASCII code ko increment karke characters print karo.

n = 3
ch = 65
for i in range(1, n + 1):
    for j in range(i):
        print(chr(ch), end=" ")
        ch += 1
    print()

50. Custom User-defined Symbol Pattern

General Pattern

#
##
###
####

Logic: User se symbol lo aur usse triangle print karo.

n = 4
sym = "#"
for i in range(1, n + 1):
    print(sym * i)

Bonus Tips for Placement Preparation

Star, number aur palindrome patterns sabse zyada practice karo
Matrix based patterns interview me strong impression dete hain
Same logic ko C, C++, Java aur Python me convert karke practice karo
Dry run + loop tracing sabse important hai

FAQ

Q1. Pattern programming kyu important hai?
Pattern programming se loops, conditions aur logic building strong hoti hai.

Q2. Kya placement me pattern questions aate hain?
Haan, especially coding rounds aur logic screening me pattern-based questions ka use hota hai.

Q3. Pattern questions kis language me practice kare?
Python, C, C++, Java kisi bhi language me kar sakte ho. Logic same rehta hai.

Q4. Beginner kaunse patterns se start kare?
Right triangle, square, pyramid, Floyd's triangle aur palindrome pyramid se start karo.

Conclusion

Ye top 50 pattern programming questions with solutions aapki coding logic aur placement preparation dono ko strong karenge. In questions ko regular practice karke aap loops, conditions aur matrix handling me kaafi strong ho sakte hain.

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