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第1回C++講習会 / intro-to-cpp-01
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odanado
May 10, 2017
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第1回C++講習会 / intro-to-cpp-01
odanado
May 10, 2017
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Transcript
ୈ1ճ ڝٕϓϩάϥϛϯάνʔϜ C++ߨशձ
C++ߨशձͷఔ 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
C++ߨशձͷ༰ • جຊతʹਫ༵3ݶதʹऴΘΒͤΔ • 10෮श • 40࠲ֶ • 30ϛχίϯςετ •
εϥΠυࢿྉωοτʹެ։͍ͯ͠·͢ • https://goo.gl/F0tgM5 • ཁ େֶΞΧϯτ • Θ͔Βͳ͍͜ͱ͕͋ͬͨΒ ͲΜͲΜ࣭ͯ͠Ͷ 2
લճͷ෮श • AtCoderͱ͍͏αΠτʹొΛͨ͠ • https://atcoder.jp • ιʔείʔυͷఏग़ํ๏ͷ࿅शΛͨ͠ 3 ਖ਼ղ ෆਖ਼ղ
લճͷ෮श • λʔϛφϧͷ͍ํ 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
લճͷ෮श • Visual Studio Codeͷ͍ํ • දࣔ(V) → ૯߹λʔϛφϧΛબ͢Δ •
ίϯύΠϧ&ϓϩάϥϜͷ࣮ߦํ๏ 5 $ g++ -std=c++14 test.cpp $./a.out test.cpp దٓࢦఆ͢Δ ϑΝΠϧΛม͑Δ
ࠓճͷ༰ • ϓϩάϥϜͷجຊ • ೖग़ྗ • cout • cin •
มͷ֓೦ • ԋࢉࢠ 6
ϓϩάϥϜͷجຊ 7 ͜ͷ2ߦ ͍ͭॻ͘
ೖग़ྗ • ը໘ʹจࣈΛग़ྗ͢Δ • cout Λ͏ 8
มͷ֓೦ • มͱ • ΛهԱ͢ΔೖΕ • هԱ͢Δ͚ͩͰͳ͘͠ࢉͱ͔ͷԋࢉ͕ग़དྷΔ 9 // a
ͱ͍͏໊લͷೖΕʹ 10ͱ͍͏σʔλΛهԱ͢Δ int a = 10; // ࣮ࡍʹग़ྗ͢Δ cout << a << endl;
มͷ֓೦ • มͱ • ΛهԱ͢ΔೖΕ • هԱ͢Δ͚ͩͰͳ͘͠ࢉͱ͔ͷԋࢉ͕ग़དྷΔ 10 // a
ʹ 10, b ʹ 20ΛهԱ͢Δ int a = 10; int b = 20; // c ʹ a ͱ b Λͨ݁͠ՌΛهԱ͢Δ int c = a + b; // 30 ͱग़ྗ͞ΕΔ cout << c << endl;
มͷ֓೦ • มͷܕ • ܕʹΑͬͯهԱग़དྷΔσʔλͷछྨ͕ҟͳΔ 11 ܕ໊ int ܕ 1,
10, 20 string จࣈྻܕ ”hello world” double ࣮ܕ 3.14 bool ཧܕ true, false // ܕ໊ ม໊ = ; ͱॻ͘ int a = 10;
ೖྗ 12 int a = 10; cout << a <<
endl; 10 Ҏ֎ͷΛग़ྗ͢Δʹϓϩάϥ ϜΛॻ͖͑Δඞཁ͕͋Δ ΩʔϘʔυ͔Βೖྗ int a; cin >> a; cout << a << endl;
ԋࢉࢠ • ͠ࢉҎ֎ʹԋࢉࢠ͕༻ҙ͞Ε͍ͯΔ • ͦͷҰ෦ • Ұཡ http://www.c-lang.org/operator.html 13 ༏ઌ
ه߸ ҙຯ 5 * ࢉ 5 / আࢉ 5 % ༨ࢉ 6 + Մࢉ 6 - ݮࢉ
ྫ • AtCoderͷABC004Λղ͍ͯΈ·͠ΐ͏ • http://abc004.contest.atcoder.jp/tasks/abc00 4_1 14
ϛχίϯςετ • AtCoder Virtual Contest ͱ͍͏αΠτ • https://not-522.appspot.com • ͜ͷαΠτʹొ͢Δඞཁ͕͋Γ
• https://not- 522.appspot.com/contest/565237302008 2176 15
·ͱΊ • ը໘ͷग़ྗʹcout Λ͏ • มͱΛهԱ͢ΔೖΕ • มʹରͯ͠͠ࢉͳͲ͕ग़དྷΔ • ΩʔϘʔυ͔ΒͷೖྗʹcinΛ͏
• ͠ࢉҎ֎ʹ৭Μͳԋࢉࢠ͕͋Δ 16