Editorial for VOI 21 Bài 1 - Tặng quà

Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.

Stream kèm slide chữa đề VOI 2021 https://www.facebook.com/groups/VNOIForum/permalink/3839076132779859/


Please read the guidelines before commenting.

  • -52
    GiaBaomtp12  commented on Sept. 16, 2023, 2:18 a.m.

    This comment is hidden due to too much negative feedback. Show it anyway.

    • 21
      NguyenHungBG  commented on Sept. 18, 2023, 3:54 a.m.

      Mong admin ban hết những thành phần như này đi