# | When? | Question | Answer |
---|---|---|---|

1 | 2 years, 7 months ago |
H - Queries with recurrences How does array "A" change its values? |
Operations of type 1 change the values of the array. The problem statement was modified to clarify this point. |

2 | 2 years, 7 months ago |
E - Rotate circles In this problem, the first test case is comparing 4 circles at the same time or is it comparing 2 and 2? |
Two adjacent regions of EVERY pair of neighboring circles must have the same color. |

3 | 2 years, 7 months ago |
D - Set What does the last constraint stand for (the one that is about the total amount of elements in R)? |
In case it is confusing: |

4 | 2 years, 7 months ago |
D - Set Is there more than one set that satisfies the conditions? |
Any valid set will be Accepted. |

5 | 2 years, 7 months ago |
I - Build me a fence in problem I, the cordenates of points must be integer? |
No |

6 | 2 years, 7 months ago |
E - Rotate circles Adjacency could be with circles in one column too? |
Yes. |

7 | 2 years, 7 months ago |
D - Set Can the set R have repeated elements? |
No. |

8 | 2 years, 7 months ago |
B - String in the tree II The only difference between problem A and problem B are in the constraints. |
Don't look further! |

9 | 2 years, 7 months ago |
General Notice that in problems C (Chinese curves) and E (Rotate circles) colors of the images are relevant to understand the problem. If you have a black-and-white printed version, please see online version. |
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10 | 2 years, 7 months ago |
General You can download PDF versions of the problems using the following links: English: https://matcomgrader.com/media/contests/6245/secured/9XYTPKJ9CVRfAG8BH4trZTNUcygMN3Wn/problems-en.pdf Spanish: https://matcomgrader.com/media/contests/6245/secured/9XYTPKJ9CVRfAG8BH4trZTNUcygMN3Wn/problems-es.pdf |
Good luck! |