第1回C++講習会 / intro-to-cpp-01

Transcript

1. ୈ1ճ
   ڝٕϓϩάϥϛϯάνʔϜ
   C++ߨशձ
   

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2. C++ߨशձͷ೔ఔ
   ೔෇ ಺༰ උߟ
   04/26 ঺հ&ೖग़ྗ
   05/03 ٳΈ ݑ๏ه೦೔
   05/10
   ೖग़ྗͷ෮श
   ม਺,ԋࢉࢠ
   05/17 ifͱfor PROGςετղઆ
   05/24 ٳΈ(༧ఆ) PROGςετղઆ
   05/31
   ifͱforͷ෮श
   vector
   06/07 set,map ୈ5ԋशࣨ
   06/14 STLͷؔ਺
   06/21 ෮शίϯςετ
   06/28 ະఆ
   07/05 ະఆ
   07/12 ະఆ
   07/19 ະఆ 1
   

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3. C++ߨशձͷ಺༰
   • جຊతʹਫ༵3ݶதʹऴΘΒͤΔ
   • 10෼෮श
   • 40෼࠲ֶ
   • 30෼ϛχίϯςετ
   • εϥΠυ΍ࢿྉ͸ωοτʹެ։͍ͯ͠·͢
   • https://goo.gl/F0tgM5
   • ཁ େֶΞΧ΢ϯτ
   • Θ͔Βͳ͍͜ͱ͕͋ͬͨΒ
   ͲΜͲΜ࣭໰ͯ͠Ͷ
   2
   

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4. લճͷ෮श
   • AtCoderͱ͍͏αΠτʹొ࿥Λͨ͠
   • https://atcoder.jp
   • ιʔείʔυͷఏग़ํ๏ͷ࿅शΛͨ͠
   3
   ਖ਼ղ
   ෆਖ਼ղ
   

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5. લճͷ෮श
   • λʔϛφϧͷ࢖͍ํ
   4
   $ mkdir kyopro
   $ cd kyopro
   $ mkdir lec01
   $ cd lec01
   $ code .
   ίϚϯυ໊ ҙຯ
   mkdir make directory
   σΟϨΫτϦ(ϑΥϧμ)Λ
   ৽ن࡞੒͢Δ
   cd change directory
   ݱࡏ͍ΔσΟϨΫτϦΛ
   มߋ͢Δ
   code
   Visual Studio Code Λ
   ىಈ͢Δ
   

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6. લճͷ෮श
   • Visual Studio Codeͷ࢖͍ํ
   • දࣔ(V) → ૯߹λʔϛφϧΛબ୒͢Δ
   • ίϯύΠϧ&ϓϩάϥϜͷ࣮ߦํ๏
   5
   $ g++ -std=c++14 test.cpp
   $./a.out
   test.cpp ͸దٓࢦఆ͢Δ
   ϑΝΠϧΛม͑Δ
   

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7. ࠓճͷ಺༰
   • ϓϩάϥϜͷجຊ
   • ೖग़ྗ
   • cout
   • cin
   • ม਺ͷ֓೦
   • ԋࢉࢠ
   6
   

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8. ϓϩάϥϜͷجຊ
   7
   ͜ͷ2ߦ͸
   ͍ͭ΋ॻ͘
   

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9. ೖग़ྗ
   • ը໘ʹจࣈΛग़ྗ͢Δ
   • cout Λ࢖͏
   8
   

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10. ม਺ͷ֓೦
    • ม਺ͱ͸
    • ஋ΛهԱ͢ΔೖΕ෺
    • هԱ͢Δ͚ͩͰͳ͘଍͠ࢉͱ͔ͷԋࢉ͕ग़དྷΔ
    9
    // a ͱ͍͏໊લͷೖΕ෺ʹ 10ͱ͍͏σʔλΛهԱ͢Δ
    int a = 10;
    // ࣮ࡍʹग़ྗ͢Δ
    cout << a << endl;
    

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11. ม਺ͷ֓೦
    • ม਺ͱ͸
    • ஋ΛهԱ͢ΔೖΕ෺
    • هԱ͢Δ͚ͩͰͳ͘଍͠ࢉͱ͔ͷԋࢉ͕ग़དྷΔ
    10
    // a ʹ 10, b ʹ 20ΛهԱ͢Δ
    int a = 10;
    int b = 20;
    // c ʹ a ͱ b Λ଍ͨ݁͠ՌΛهԱ͢Δ
    int c = a + b;
    // 30 ͱग़ྗ͞ΕΔ
    cout << c << endl;
    

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12. ม਺ͷ֓೦
    • ม਺ͷܕ
    • ܕʹΑͬͯهԱग़དྷΔσʔλͷछྨ͕ҟͳΔ
    11
    ܕ໊
    int ੔਺ܕ 1, 10, 20
    string จࣈྻܕ ”hello world”
    double ࣮਺ܕ 3.14
    bool ࿦ཧܕ true, false
    // ܕ໊ ม਺໊ = ஋; ͱॻ͘
    int a = 10;
    

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13. ೖྗ
    12
    int a = 10;
    cout << a << endl;
    10 Ҏ֎ͷ஋Λग़ྗ͢Δʹ͸ϓϩάϥ
    ϜΛॻ͖׵͑Δඞཁ͕͋Δ
    ໰୊఺
    ΩʔϘʔυ͔Βೖྗ
    int a;
    cin >> a;
    cout << a << endl;
    

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14. ԋࢉࢠ
    • ଍͠ࢉҎ֎ʹ΋ԋࢉࢠ͕༻ҙ͞Ε͍ͯΔ
    • ͦͷҰ෦
    • Ұཡ http://www.c-lang.org/operator.html
    13
    ༏ઌ౓ ه߸ ҙຯ
    5 * ৐ࢉ
    5 / আࢉ
    5 % ৒༨ࢉ
    6 + Մࢉ
    6 - ݮࢉ
    

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15. ྫ୊
    • AtCoderͷABC004Λղ͍ͯΈ·͠ΐ͏
    • http://abc004.contest.atcoder.jp/tasks/abc00
    4_1
    14
    

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16. ϛχίϯςετ
    • AtCoder Virtual Contest ͱ͍͏αΠτ
    • https://not-522.appspot.com
    • ͜ͷαΠτʹ΋ొ࿥͢Δඞཁ͕͋Γ
    • https://not-
    522.appspot.com/contest/565237302008
    2176
    15
    

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17. ·ͱΊ
    • ը໘΁ͷग़ྗʹ͸cout Λ࢖͏
    • ม਺ͱ͸஋ΛهԱ͢ΔೖΕ෺
    • ม਺ʹରͯ͠଍͠ࢉͳͲ͕ग़དྷΔ
    • ΩʔϘʔυ͔Βͷೖྗʹ͸cinΛ࢖͏
    • ଍͠ࢉҎ֎ʹ΋৭Μͳԋࢉࢠ͕͋Δ
    16
    

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