Harbour.Space Scholarship Contest 2021-2022 (Div. 1 + Div. 2) Editorial

Revision en3, by Harbour.Space, 2021-07-22 22:56:50

Hope you all enjoyed the problemset! Editorials to problems H and I are not ready yet, we will add them as soon as possible. We apologize for weak pretests and easy problems for top participants.

By the way, solution authors did not necessarily prepare the problems. The solutions were chosen at random.

1553A - Сумма цифр

Idea: bthero Preparation: 244mhq

Tutorial
Solution (kefaa2)

1553B - Переворот строки

Idea: Errichto Preparation: Will not be revealed for now because we care for his/their safety.

Tutorial
Solution (BledDest)

1553C - Пенальти

Idea: Errichto Preparation: BledDest

Tutorial
Solution (BledDest)

1553D - Backspace

Idea: Adel_SaadEddin, Zaher Preparation: Will not be revealed for now because we care for his/their safety.

Tutorial
Solution (Um_nik)

1553E - Сдвиг перестановки

Idea: bthero, 244mhq Preparation: BledDest

Tutorial
Solution (BledDest)

1553F - Попарные остатки

Idea: 244mhq, Errichto Preparation: bthero

Tutorial
Solution (bthero)

1553G - Граф общих делителей

Idea: Adel_SaadEddin, Zaher, Errichto Preparation: Errichto

Tutorial
Solution (Errichto)

1553H - XOR и расстояния

Idea: 244mhq Preparation: BledDest, mnaeraxr, 244mhq

Tutorial
Solution (BledDest)
Alternative solution (BledDest)

1553I - Лестницы

Idea: bthero, 244mhq, BledDest Preparation: BledDest, 244mhq

Tutorial
Solution (BledDest)
Tags #editorial, #cf1553, #dontkillme

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en4 English Harbour.Space 2021-07-23 11:29:22 3035 Tiny change: 'h you all happy upsolving' -> 'h you all productive upsolving'
en3 English Harbour.Space 2021-07-22 22:56:50 2122 Tiny change: ' summary="Solution (B' -> ' summary="Alternative solution (B'
en2 English Harbour.Space 2021-07-22 22:35:06 21493 Tiny change: ':bthero]\nPreparat' -> ':bthero]\n\nPreparat' (published)
en1 English Harbour.Space 2021-07-22 21:58:50 1396 Initial revision (saved to drafts)