Tính tổng cấp số cộng

Trong nội dung này ta sẽ viết chương trình giải quyết vấn đề: “Nhập số tự nhiên n rồi tính tổng: S = 1 + 2 + … + n“. 

Để giải quyết vấn đề này có nhiều cách khác nhau: sử dụng vòng lặp, sử dụng công thức toán học. Trong cả hai cách chúng ta đều nhận được kết quả như nhau. Thuật toán và các bước thực hiện cụ thể như sau:

Với cách sử dụng vòng lặp

  1. Khởi tạo biến tổng sum = 0, biến chạy i = 1
  2. Dùng vòng lặp for cho i chạy từ 1 đến n, cộng giá trị i vào tổng: sum += i
  3. hiện kết quả sum

Với cách sử dụng công thức toán

  • Công thức tính cấp số cộng của bài này là: s = n(n+1)/2.
  • in ra kết quả

Sau đây là chương trình thực hiện trên ngôn ngữ lập trình C:

Như vậy chúng ta đã giải quyết xong vấn đề này rồi. Nếu có ý kiến đóng góp hay câu hỏi nào bạn hãy để lại phía dưới phần commnet nhé.

Tag:, , ,

author avatar
Thân Triệu

Có thể bạn quan tâm

số thuận nghịch chia hết cho k
Liệt kê các số thuận nghịch chia hết cho k
24 Tháng Tám, 2020
số đối xứng
Kiểm tra số thuận nghịch
23 Tháng Tám, 2020
tính n giai thừa
Tính tổng S = 1! + 2! + … + n!
22 Tháng Tám, 2020

    29 Comments

  1. tuocthanh
    28/09/2020

    cho em hỏi sao mình lại dùng unsigned int thay vì int ạ

  2. joker
    11/12/2020

    Thanks again for the blog. Much thanks again. Awesome. Katuscha Norton Zipah

  3. sex filmleri
    15/12/2020

    Thank you ever so for you article post. Really thank you! Great. Merilyn Arney Galen

  4. casino
    17/12/2020

    You made some fine points there. I did a search on the topic and found the majority of people will agree with your blog. Vanessa Ilario Lucinda

  5. bahis
    18/12/2020

    I really like and appreciate your article post. Thanks Again. Keep writing. Fawn Farrel Bear

  6. erotik
    18/12/2020

    Way cool! Some extremely valid points! I appreciate you writing this write-up and the rest of the website is really good. Bamby Thoma Oralee

  7. bahis
    18/12/2020

    Major thanks for the post. Really looking forward to read more. Really Cool. Hulda Kermit Babcock

  8. sikis
    18/12/2020

    I visited many blogs except the audio quality for audio songs current at this web site is truly fabulous. Perla Erhart Helbonnas

  9. sikis
    19/12/2020

    Hi there! This is kind of off topic but I need some guidance from an established blog. Jaquenetta Algernon Hatti

  10. erotik
    19/12/2020

    Remarkable! Its in fact amazing paragraph, I have got much clear idea about from this paragraph. Gussi Berty Fox

  11. bahis
    19/12/2020

    Although websites we backlink to beneath are considerably not associated to ours, we feel they are essentially really worth a go by, so have a look. Aurore Rossy Scammon

  12. sikis
    19/12/2020

    I think you have observed some very interesting points , appreciate it for the post. Farand Brant Higinbotham

  13. erotik
    19/12/2020

    Im thankful for the blog article. Much thanks again. Much obliged. Lynett Adams Berne

  14. bedava
    20/12/2020

    Thank you for your article. Thanks Again. Much obliged. Terrye Amory Dorsey

  15. web-dl
    20/12/2020

    I have read so many posts concerning the blogger lovers except this piece of writing is genuinely a nice article, keep it up. Ali Bernhard Tibbetts

  16. bedava
    20/12/2020

    Excellent way of describing, and good article to take information concerning my presentation subject, which i am going to present in school. Helen-Elizabeth Lindsey Santoro

  17. indir
    21/12/2020

    I used to be able to find good advice from your content. Kalie Rooney Willis

  18. yify
    21/12/2020

    Wonderful post! We are linking to this particularly great post on our site. Keep up the good writing. Frank Maddie Lorenzo

  19. download
    21/12/2020

    Really appreciate you sharing this blog. Really looking forward to read more. Awesome. Melinda Rollins Valer

  20. bedava
    22/12/2020

    This is one awesome blog article. Really thank you! Really Great. Merrili Reggy Car

  21. indir
    22/12/2020

    Now I am ready to do my breakfast, when having my breakfast coming over again to read other news. Nola Cross Ahl

  22. bedava
    23/12/2020

    Please stop by the sites we follow, which includes this one particular, because it represents our picks from the web. Arleyne Kleon Crooks

  23. emergency car locksmith
    03/01/2021

    I am incessantly thought about this, thanks for posting. https://local-auto-locksmith.co.uk/

  24. chwilówki dla zadłużonych
    03/01/2021

    I reckon something truly special in this website. https://chwilowki-pozyczka.pl/

  25. renault megane key
    03/01/2021

    Some really great info, Gladiola I detected this. I’m not spaming. I’m just saying your website is AWSOME! Thank you so much! Please vist also my website. https://local-auto-locksmith.co.uk/renault/

  26. clan symbol
    03/02/2021

    clan symbol knight online clanlar için ücretsiz bir paylaşım sitesidir.

  27. drugs used for thyroid problems
    15/02/2021

    Thanks for your thoughts. One thing I’ve got noticed is the fact banks in addition to financial institutions understand the spending behaviors of consumers and as well understand that the majority of people max out and about their cards around the breaks. They smartly take advantage of that fact and then start flooding ones inbox in addition to snail-mail box having hundreds of no interest APR credit cards offers shortly after the holiday season concludes. Knowing that should you be like 98% of American community, you’ll rush at the possiblity to consolidate card debt and shift balances for 0 apr interest rates credit cards. jiiihkm https://thyroidmedi.com – over counter medicine for thyroid pain https://thyroidmedi.com/

  28. buy thyroid pain drugs
    15/02/2021

    Thanks for your ideas. One thing I have noticed is that banks and financial institutions know the spending habits of consumers and understand that most people max out their credit cards around the holidays. They wisely take advantage of this fact and start flooding your inbox and snail-mail box with hundreds of 0 APR credit card offers soon after the holiday season ends. Knowing that if you are like 98% of the American public, you’ll jump at the chance to consolidate credit card debt and transfer balances to 0 APR credit cards. aaaaaaa https://thyroidmedi.com – buy thyroid pain drugs https://thyroidmedi.com/