List of random Codeforces problems, all of them are Div. 1 E problems. The problems are sorted, the most solved problem comes first. This is a good practice for whoever can solve almost all Div. 1 A, B, C and D problems, but might have some difficulties while solving the C problems.
Checkbox | ID | Problem Name | Online Judge | Difficulty |
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1 | Jeff and Permutation | Codeforces | 5 |
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2 | Lucky Number Representation | Codeforces | 5 |
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3 | Lucky Queries | Codeforces | 6 |
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4 | Little Elephant and Inversions | Codeforces | 7 |
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5 | Little Elephant and Tree | Codeforces | 7 |
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6 | Lucky Array | Codeforces | 7 |
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7 | Lucky Country | Codeforces | 7 |
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8 | Ciel and Gondolas | Codeforces | 8 |
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9 | Lucky Arrays | Codeforces | 7 |
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10 | Gifts | Codeforces | 9 |
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11 | Sign on Fence | Codeforces | 8 |
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12 | Gripping Story | Codeforces | 7 |
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13 | Opening Portals | Codeforces | 7 |
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14 | Optimize! | Codeforces | 8 |
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15 | Sereja and Sets | Codeforces | 7 |
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16 | Little Elephant and Strings | Codeforces | 9 |
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17 | Lostborn | Codeforces | 8 |
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18 | Bits of merry old England | Codeforces | 9 |
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19 | Igloo Skyscraper | Codeforces | 7 |
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20 | Vowels | Codeforces | 8 |
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21 | Cow Tennis Tournament | Codeforces | 9 |
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22 | Thoroughly Bureaucratic Organization | Codeforces | 7 |
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23 | Candies and Stones | Codeforces | 8 |
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24 | Sereja and Intervals | Codeforces | 8 |
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25 | Ladies' Shop | Codeforces | 9 |
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26 | Martian Food | Codeforces | 8 |
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27 | Buying Sets | Codeforces | 10 |
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28 | Wizards and Bets | Codeforces | 8 |
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29 | Maxim and Calculator | Codeforces | 9 |
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30 | Stairs and Lines | Codeforces | 8 |
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31 | Maze | Codeforces | 8 |
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32 | Alien DNA | Codeforces | 9 |
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33 | Number Challenge | Codeforces | 8 |
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34 | Fibonacci Number | Codeforces | 9 |
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35 | Noble Knight's Path | Codeforces | 10 |
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36 | Biologist | Codeforces | 8 |
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37 | Polo the Penguin and Lucky Numbers | Codeforces | 9 |
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38 | Dima and Game | Codeforces | 8 |
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39 | Candies Game | Codeforces | 9 |
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40 | Endless Matrix | Codeforces | 7 |
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41 | Freezing with Style | Codeforces | 10 |
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42 | Road Repairs | Codeforces | 9 |
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43 | Weak Subsequence | Codeforces | 9 |
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44 | Sereja and Squares | Codeforces | 9 |
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45 | Levko and Game | Codeforces | 9 |
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46 | Ping-Pong | Codeforces | 10 |
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47 | Function | Codeforces | 9 |
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48 | Quick Tortoise | Codeforces | 9 |
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49 | Pilgrims | Codeforces | 9 |
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50 | The Classic Problem | Codeforces | 9 |
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51 | Meeting Her | Codeforces | 9 |
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52 | Mystic Carvings | Codeforces | 9 |
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53 | Yaroslav and Arrangements | Codeforces | 9 |
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54 | Jzzhu and Squares | Codeforces | 9 |
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55 | Roadside Trees | Codeforces | 9 |
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56 | Appleman and a Game | Codeforces | 9 |
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57 | Parking Lot | Codeforces | 9 |
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58 | Cookie Clicker | Codeforces | 9 |
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59 | Doodle Jump | Codeforces | 10 |
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60 | Xenia and String Problem | Codeforces | 10 |
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61 | Mogohu-Rea Idol | Codeforces | 8 |
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62 | Random Ranking | Codeforces | 10 |
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63 | Empty Rectangles | Codeforces | 9 |
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64 | Mirror Room | Codeforces | 10 |
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65 | Little Pony and Lord Tirek | Codeforces | 9 |
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66 | k-d-sequence | Codeforces | 10 |
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67 | Drawing Circles is Fun | Codeforces | 9 |
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68 | Fox And Polygon | Codeforces | 8 |
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69 | Evil | Codeforces | 10 |
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70 | Darts | Codeforces | 9 |
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71 | Subsequences Return | Codeforces | 9 |
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72 | Red and Black Tree | Codeforces | 10 |
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73 | The Child and Binary Tree | Codeforces | 10 |
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74 | Sequence Transformation | Codeforces | 10 |
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75 | Gena and Second Distance | Codeforces | 9 |
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76 | Two Rooted Trees | Codeforces | 9 |
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77 | Matrix | Codeforces | 9 |
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78 | Planar Graph | Codeforces | 10 |
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79 | Misha and LCP on Tree | Codeforces | 9 |
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80 | Sleeping | Codeforces | 8 |
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81 | String Theory | Codeforces | 10 |
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82 | Martian Colony | Codeforces | 10 |
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83 | Birthday | Codeforces | 10 |
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84 | Sharti | Codeforces | 8 |
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85 | Tourists | Codeforces | 9 |
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86 | Furukawa Nagisa's Tree | Codeforces | 9 |
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87 | ELCA | Codeforces | 10 |
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88 | Lucky Interval | Codeforces | 10 |
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89 | On Iteration of One Well-Known Function | Codeforces | 10 |
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90 | Soap Time! - 2 | Codeforces | 9 |
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91 | Mashmokh's Designed Problem | Codeforces | 10 |
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92 | Fox and Meteor Shower | Codeforces | 10 |
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93 | Heaven Tour | Codeforces | 9 |
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94 | Fire and Ice | Codeforces | 10 |
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95 | Pills | Codeforces | 10 |
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96 | Dreamoon and Notepad | Codeforces | 10 |
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97 | Sorting Permutations | Codeforces | 10 |
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98 | Help Greg the Dwarf 2 | Codeforces | 10 |
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99 | Petya and Rectangle | Codeforces | 10 |
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100 | Permanent | Codeforces | 9 |