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100 Coding Problem (Solved)

A little approach to help beginner programmers with 100 most popular coding problem with their solutions in C++

List of problems

  1. Check if a number is positive or negative
  2. Even Odd
  3. Sum of first N natural numbers
  4. Sum of numbers in a given range
  5. Greatest among two numbers
  6. Greatest among three numbers
  7. Leap year
  8. Check prime number
  9. Prime numbers in a range
  10. Sum of all digits of a number
  11. Reverse of a number
  12. Palindrome number
  13. Armstrong number
  14. Fibonacci series
  15. Factorial of a number
  16. Strong number
  17. Power of a number
  18. Perfect number
  19. Perfect Square
  20. Count the number of digits of a number
  21. GCD or HCF of two numbers
  22. LCM of two numbers
  23. Binary to Decimal
  24. Decimal to Binary
  25. Decimal to Octal
  26. Binary to Octal
  27. Octal to Decimal
  28. Octal to Binary
  29. Permutation [nPr]
  30. Combination [nCr]
  31. Perimeter and Area of square
  32. Perimeter/Circumference and Area of circle
  33. Perimeter and Area of rectangle
  34. Area of triangle
  35. Surface area and Volume of cube
  36. Math problem 1
  37. Linked list

Conclusion

Most of the codes are in worst time complexity. As this collection is made for beginners so simplicity is the main priority here. But anyone wants to contribute and make this repository usable for intermediate/advanced programmers is always welcome.

References