ĐẾM CẶP

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Points: 100.00 (partial)
Time limit: 1.0s
Memory limit: 512M
Input: stdin
Output: stdout
Problem type
Allowed languages
C++, Pascal, Python, Scratch

Comments

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  • 0
    z12t34duongdzt121ntv   commented on May 24, 2023, 8:06 a.m.

    ai cho mình xin công thức với


    • 0
      tuattsx3   commented on May 31, 2023, 4:20 a.m.

      n,A,B = [int(i) for i in input().split()] sd = 1+A sc = 1+B tong = 0 sh = n-sc t = sc-sd+1 tong = tsh+t(t+1)//2 print(tong)


  • -2
    TheLegendGod   commented on May 19, 2023, 9:27 a.m.

    ╰❥13v31 34๖ۣۜ⁀ᶦᵈᵒᶫ


  • 0
    LNTA   commented on April 19, 2023, 4:25 p.m.

    Bày tôi làm với


  • -5
    nguyendung2k10   commented on April 8, 2023, 10:06 a.m.

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


  • -5
    nguyendung2k10   commented on April 8, 2023, 10:04 a.m.

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


  • -5
    nguyendung2k10   commented on April 8, 2023, 10:03 a.m. ← edited

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


  • -5
    nguyendung2k10   commented on April 8, 2023, 10:02 a.m.

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


  • -4
    duybao6B   commented on April 6, 2023, 9:24 a.m.

    💙💙💙💙


  • 0
    hobaophuc2009   commented on July 9, 2022, 11:12 a.m.

    ai có công thức toán bài này ko cho tui với


  • 1
    NguyenTungDuong1208   commented on July 2, 2022, 5:40 p.m.

    có ai đó giúp mình code scratch cách đặt n,A,B trên câu trả lời 1 dòng không ạ ? VD: in: 1 2 3; N = 1; a = 2; b = 3;


    • 0
      Khanhngoc_22   commented on July 2, 2022, 9:04 p.m.

      https://scratch.mit.edu/projects/711099412/ Bạn xem thử code này. Code này hơi dài nên bạn để riêng ra một mảnh ghép làm cho dễ nhé


  • 2
    food   commented on June 26, 2022, 8:11 a.m.

    Bài này có công thức đấy nhé!


  • -3
    nguyenngoquelam   commented on June 22, 2022, 8:10 a.m.

    Ủa nếu như x < y thì làm sao x - y ? Phải là y - x chứ ?


    • 15
      huydarwin   commented on June 22, 2022, 10:30 a.m.

      vì thế nên đề bài mới cho x-y trong giá trị tuyệt đối ấy


  • -22
    doanchicong   commented on June 21, 2022, 8:29 a.m.

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