1 |
P1 - Translation |
Codeforces |
Codeforces Beta Round #40 (Div. 2) |

2 |
P2 - Kefa and First Steps |
Codeforces |
Codeforces Round #321 (Div. 2) |

3 |
P3 - Presents |
Codeforces |
Codeforces Beta Round #97 (Div. 2) |

4 |
P4 - Expression |
Codeforces |
Codeforces Round #274 (Div. 2) |

5 |
P5 - Calculating Function |
Codeforces |
Codeforces Round #277 (Div. 2) |

6 |
P6 - Dubstep |
Codeforces |
Codeforces Round #130 (Div. 2) |

7 |
P7 - Game With Sticks |
Codeforces |
Codeforces Round #258 (Div. 2) |

8 |
P8 - Arrival of the General |
Codeforces |
Codeforces Round #103 (Div. 2) |

9 |
P9 - Anton and Danik |
Codeforces |
Codeforces Round #379 (Div. 2) |

10 |
P10 - Vanya and Lanterns |
Codeforces |
Codeforces Round #280 (Div. 2) |

11 |
P11 - Hulk |
Codeforces |
Codeforces Round #366 (Div. 2) |

12 |
P12 - Registration System |
Codeforces |
Codeforces Beta Round #4 (Div. 2 Only) |

13 |
P13 - Case of the Zeros and Ones |
Codeforces |
Codeforces Round #310 (Div. 2) |

14 |
P14 - Raising Bacteria |
Codeforces |
Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] |

15 |
P15 - Appleman and Toastman |
Codeforces |
Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) |

16 |
P16 - System of Equations |
Codeforces |
Codeforces Round #131 (Div. 2) |

17 |
P17 - Infinite Sequence |
Codeforces |
Educational Codeforces Round 7 |

18 |
P18 - Playing with Dice |
Codeforces |
Codeforces Round #222 (Div. 2) |

19 |
P19 - A Good Contest |
Codeforces |
Codeforces Round #357 (Div. 2) |

20 |
P20 - Summer Camp |
Codeforces |
Codeforces Round #352 (Div. 2) |

21 |
P21 - Magic Numbers |
Codeforces |
Codeforces Round #189 (Div. 2) |

22 |
P22 - Greg's Workout |
Codeforces |
Codeforces Round #156 (Div. 2) |

23 |
P23 - USB Flash Drives |
Codeforces |
Educational Codeforces Round 3 |

24 |
P24 - Chris and Magic Square |
Codeforces |
Codeforces Round #369 (Div. 2) |

25 |
P25 - Watchmen |
Codeforces |
Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) |

26 |
P26 - Petr and Book |
Codeforces |
Codeforces Beta Round #99 (Div. 2) |

27 |
P27 - Learning Languages |
Codeforces |
Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) |

28 |
P28 - Inventory |
Codeforces |
Codeforces Round #315 (Div. 2) |

29 |
P29 - Next Test |
Codeforces |
Codeforces Beta Round #27 (Codeforces format, Div. 2) |

30 |
P30 - Lucky Numbers (easy) |
Codeforces |
Codeforces Beta Round #77 (Div. 2 Only) |

31 |
P31 - Division into Teams |
Codeforces |
Codeforces Round #106 (Div. 2) |

32 |
P32 - Ancient Berland Circus |
Codeforces |
Codeforces Beta Round #1 |

33 |
P33 - Watto and Mechanism |
Codeforces |
Codeforces Round #291 (Div. 2) |

34 |
P34 - Gabriel and Caterpillar |
Codeforces |
Educational Codeforces Round 10 |

35 |
P35 - Grandma Laura and Apples |
Codeforces |
Educational Codeforces Round 9 |

36 |
P36 - Easter Eggs |
Codeforces |
Codeforces Beta Round #70 (Div. 2) |

37 |
P37 - Jon Snow and his Favourite Number |
Codeforces |
Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) |

38 |
P38 - Lucky Mask |
Codeforces |
Codeforces Round #104 (Div. 2) |

39 |
P39 - Longest k-Good Segment |
Codeforces |
Educational Codeforces Round 5 |

40 |
P40 - African Crossword |
Codeforces |
Codeforces Beta Round #74 (Div. 2 Only) |