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CodeForces
CodeForces Questions Solution
1. 1971A - My First Sorting Problem
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2. 1883B - Chemistry
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3. 1974G - Money Buys Less Happiness Now
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4. 1968D - Permutation Game
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5. 155A - I_love_\%username\%
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6. 1974D - Ingenuity-2
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7. 1974B - Symmetric Encoding
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8. 1974A - Phone Desktop
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9. 784A - Numbers Joke
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10. 1490G - Old Floppy Drive
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11. 1111B - Average Superhero Gang Power
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12. 894B - Ralph And His Magic Field
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13. 1147C - Thanos Nim
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14. 802D - Marmots (easy)
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15. 1957C - How Does the Rook Move
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16. 1974C - Beautiful Triple Pairs
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17. 1956D - Nene and the Mex Operator
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18. 1971G - XOUR
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19. 131E - Yet Another Task with Queens
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20. 1433F - Zero Remainder Sum
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21. 1965D - Missing Subarray Sum
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22. 773A - Success Rate
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23. 1256D - Binary String Minimizing
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24. 1971A - My First Sorting Problem
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25. 1969D - Shop Game
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26. 1973C - Cat Fox and Double Maximum
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27. 1973A - Chess For Three
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28. 1971B - Different String
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29. 1968B - Prefiquence
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30. 1972C - Permutation Counting
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31. 1968E - Cells Arrangement
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32. 1951D - Buying Jewels
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33. 1954C - Long Multiplication
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34. 386D - Game with Points
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35. 1601B - Frog Traveler
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36. 1592D - Hemose in ICPC
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37. 1968D - Permutation Game
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38. 1846A - Rudolph and Cut the Rope
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39. 1847A - The Man who became a God
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40. 1957E - Carousel of Combinations
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41. 1965C - Folding Strip
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42. 535C - Tavas and Karafs
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43. 234A - Lefthanders and Righthanders
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44. 1842D - Tenzing and His Animal Friends
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45. 1973B - Cat Fox and the Lonely Array
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46. 743B - Chloe and the sequence
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47. 1955D - Inaccurate Subsequence Search
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48. 1401F - Reverse and Swap
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49. 367A - Sereja and Algorithm
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50. 109D - Lucky Sorting
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51. 585E - Present for Vitalik the Philatelist
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52. 222A - Shooshuns and Sequence
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53. 1971C - Clock and Strings
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54. 1481A - Space Navigation
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55. 1748D - ConstructOR
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56. 1966D - Missing Subsequence Sum
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57. 441C - Valera and Tubes
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58. 1762F - Good Pairs
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59. 1744B - Even-Odd Increments
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60. 605A - Sorting Railway Cars
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61. 1955F - Unfair Game
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62. 784F - Crunching Numbers Just for You
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63. 112C - Petya and Inequiations
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64. 584B - Kolya and Tanya
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65. 1957D - A BIT of an Inequality
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66. 731E - Funny Game
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67. 1185D - Extra Element
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68. 1965B - Missing Subsequence Sum
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69. 1971F - Circle Perimeter
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70. 1966B - Rectangle Filling
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71. 1972A - Contest Proposal
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72. 1255B - Fridge Lockers
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73. 1965A - Everything Nim
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74. 483A - Counterexample
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75. 171C - A Piece of Cake
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76. 1700B - Palindromic Numbers
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77. 289A - Polo the Penguin and Segments
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78. 1391C - Cyclic Permutations
22
79. 1614B - Divan and a New Project
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80. 1438A - Specific Tastes of Andre
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81. 227A - Where do I Turn
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82. 835C - Star sky
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83. 400A - Inna and Choose Options
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84. 1954E - Chain Reaction
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85. 1952J - Help what does it mean to be "Based"
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86. 63C - Bulls and Cows
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87. 1955E - Long Inversions
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88. 1955B - Progressive Square
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89. 928A - Login Verification
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90. 1968F - Equal XOR Segments
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91. 1968C - Assembly via Remainders
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92. 1965E - Connected Cubes
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93. 1966A - Card Exchange
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94. 171A - Mysterious numbers - 1
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95. 1952G - Mathematician Takeover
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96. 45D - Event Dates
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97. 1957B - A BIT of a Construction
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98. 1969B - Shifts and Sorting
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99. 1286B - Numbers on Tree
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100. 122C - Lucky Sum
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