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留言
apoper114dolce 10 月 22 日 上午 9:05 
⠀⠀:bbl::rosebud::bbl:⠀⠀⠀⠀⠀⠀:bbl::rosebud::bbl:
:rosebud::rarebutterfly::atomical::rarebutterfly::rosebud:⠀⠀:rosebud::rarebutterfly::atomical::rarebutterfly::rosebud:
:bbl::atomical:⠀⠀⠀⠀:atomical::bbl::atomical:⠀⠀⠀⠀:atomical::bbl:
:rosebud::rarebutterfly:⠀⠀⠀⠀⠀⠀:rarebutterfly:⠀⠀⠀⠀⠀⠀:rarebutterfly::rosebud:
⠀⠀:bbl::atomical:⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀:atomical::bbl:
⠀⠀⠀⠀:rosebud::rarebutterfly:⠀⠀⠀⠀⠀⠀:rarebutterfly::rosebud:
⠀⠀⠀⠀⠀⠀:bbl::atomical:⠀⠀:atomical::bbl:
⠀⠀⠀⠀⠀⠀⠀⠀:rosebud::rarebutterfly::rosebud:
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀:bbl:
apoper114dolce 10 月 4 日 上午 12:01 
:splash::cure::cure::splash::cure::cure:
:cure::Antibody::Antibody::cure::Antibody::BR_Heart::BR_Heart::splash::BR_Heart::BR_Heart:
:cure::Antibody::Antibody::Antibody::BR_Heart::shinealight::shinealight::BR_Heart::shinealight::shinealight::BR_Heart:
:splash::cure::Antibody::Antibody::BR_Heart::shinealight::shinealight::shinealight::shinealight::shinealight::BR_Heart:
:splash::splash::cure::Antibody::cure::BR_Heart::shinealight::shinealight::shinealight::BR_Heart:
:splash::splash::splash::cure::splash::splash::BR_Heart::shinealight::BR_Heart:
:splash::splash::splash::splash::splash::splash::splash::BR_Heart:
apoper114dolce 9 月 27 日 上午 9:53 
   :mind_rose::anywayredspring:    :heartred:    :anywayredspring::mind_rose:
:anywayredspring::ai_flare::atomical::mind_rose:    :mind_rose::atomical::ai_flare::anywayredspring:
 :mind_rose::atomical::shinealight::atomical::anywayredspring::atomical::shinealight::atomical::mind_rose:
 :atomical::anywayredspring::atomical::ai_flare::atomical::ai_flare::atomical::anywayredspring::atomical:
 :atomical:   :mind_rose::atomical::shinealight::atomical::mind_rose:   :atomical:
 :heartred:   :atomical::anywayredspring::atomical::anywayredspring::atomical:    :heartred:
      :atomical:   :mind_rose:   :atomical:
       :heartred:   :atomical:    :heartred:
            :atomical:
             :heartred:
apoper114dolce 9 月 22 日 上午 2:55 
Problem: Prove that the sum of the first n positive integers can be expressed as:

n(n+1)/2

Prove:

1 + 2 + 3 + ... + n = n(n+1)/2
apoper114dolce 9 月 20 日 上午 3:09 
⠀⠀⠀⠀:bombgd::bombgd::bombgd::bombgd:
⠀⠀⠀⠀:bombgd::starsky::invade::bombgd:
⠀⠀⠀⠀:bombgd::invade::starsky::bombgd:
⠀⠀⠀⠀:bombgd::starsky::invade::bombgd:
:bombgd::bombgd::bombgd::invade::starsky::bombgd::bombgd::bombgd:
:bombgd::starsky::invade::starsky::invade::starsky::invade::bombgd:
:bombgd::invade::starsky::invade::starsky::invade::starsky::bombgd:
:bombgd::bombgd::bombgd::starsky::invade::bombgd::bombgd::bombgd:
⠀⠀⠀⠀:bombgd::invade::starsky::bombgd:
⠀⠀⠀⠀:bombgd::bombgd::bombgd::bombgd:
apoper114dolce 9 月 14 日 上午 5:56 
⠀⠀ :fireflies::dealstars::fireflies:⠀⠀⠀⠀⠀⠀:fireflies::dealstars::fireflies:
:fireflies::dealstars::Y_H::Y_H::dealstars:⠀⠀::dealstars::Y_H::Y_H::dealstars::fireflies:
:dealstars::Y_H::glare::glare::Y_H::fireflies::Y_H::glare::glare::Y_H::dealstars:
:fireflies::Y_H::glare::glare::glare::Y_H::glare::glare::glare::Y_H::fireflies:
⠀⠀ :dealstars::Y_H::glare::glare::glare::glare::glare::Y_H::dealstars:
⠀⠀⠀⠀ :fireflies::Y_H::glare::glare::glare::Y_H::fireflies:
⠀⠀⠀⠀⠀⠀ :dealstars::Y_H::glare::Y_H::dealstars:
⠀⠀⠀⠀⠀⠀⠀⠀ :fireflies::Y_H::fireflies:
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ :dealstars: