1. Position of a person diametrically opposite on a circle
  2. Count of all even numbers in the range [L, R] whose sum of digits is divisible by 3
  3. Print n numbers such that their sum is a perfect square
  4. Minimum number of replacements to make the binary string alternating | Set 2
  5. Sum of all odd factors of numbers in the range [l, r]
  6. Check if a number can be represented as sum of non zero powers of 2
  7. Find kth smallest number in range [1, n] when all the odd numbers are deleted
  8. Longest double string from a Palindrome
  9. Sum of the series (1*2) + (2*3) + (3*4) + ...... upto n terms
  10. Sum of the series 1^1 + 2^2 + 3^3 + ..... + n^n using recursion
  11. Menu Driven C++ Program for a Simple Calculator
  12. Sum of all i such that (2^i + 1) % 3 = 0 where i is in range [1, n]
  13. Sum of all even factors of numbers in the range [l, r]
  14. Minimum number of letters needed to make a total of n
  15. Count of numbers having only 1 set bit in the range [0, n]
  16. Count of all N digit numbers such that num + Rev(num) = 10^N - 1
  17. Maximum value of |arr[0] - arr[1]| + |arr[1] - arr[2]| + ... +|arr[n - 2] - arr[n - 1]| when elements are from 1 to n
  18. Sum of i * countDigits(i)^2 for all i in range [L, R]
  19. Find the modified array after performing k operations of given type
  20. Character whose frequency is equal to the sum of frequencies of other characters of the given string
  21. Distinct state codes that appear in a string as contiguous sub-strings
  22. Smallest and Largest N-digit perfect cubes
  23. Smallest odd number with N digits
  24. Smallest Even number with N digits
  25. Addition of two numbers without propagating Carry
  26. Last digit of Product of two Large or Small numbers (a * b)
  27. Largest Even and Odd N-digit numbers
  28. Number of digits before the decimal point in the division of two numbers
  29. Number of steps required to reach point (x,y) from (0,0) using zig-zag way
  30. Smallest and Largest Palindrome with N Digits
  31. Longest sub-array whose product is 0
  32. Count rotations of N which are Odd and Even
  33. Smallest and Largest N-digit perfect squares
  34. Count of buttons pressed in a keypad mobile
  35. Convert the ASCII value sentence to its equivalent string
  36. Determine the number of squares of unit area that a given line will pass through.
  37. Smallest N digit number which is a multiple of 5
  38. Smallest and Largest sum of two n-digit numbers
  39. Roots of the quadratic equation when a + b + c = 0 without using Shridharacharya formula
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