From 354e9d471ee1543428e008d87a662fc230e10f50 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E8=B0=A6?= <13581096+liu-qian-6@user.noreply.gitee.com> Date: Fri, 12 Jul 2024 17:55:55 +0800 Subject: [PATCH 1/4] Chapter9exercises --- .../C++PrimerPlusExercises/Chapter9/9.3.cpp" | 31 +++++++++ .../C++PrimerPlusExercises/Chapter9/9.4/9.4" | Bin 0 -> 17120 bytes .../Chapter9/9.4/main.cpp" | 23 +++++++ .../Chapter9/9.4/sales.cpp" | 60 ++++++++++++++++++ .../Chapter9/9.4/sales.h" | 22 +++++++ 5 files changed, 136 insertions(+) create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.3.cpp" create mode 100755 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/9.4" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/main.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.h" diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.3.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.3.cpp" new file mode 100644 index 0000000..40963ad --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.3.cpp" @@ -0,0 +1,31 @@ +#include +#include +#include + +using namespace std; + +struct chaff { + char dross[20]; + int slag; +}; + +int main() { + + char buffer[sizeof(chaff) * 2]; + chaff* chaffs = new (buffer) chaff[2]; + + + strcpy(chaffs[0].dross, "chaff1"); + chaffs[0].slag = 10; + strcpy(chaffs[1].dross, "chaff2"); + chaffs[1].slag = 15; + + + for (int i = 0; i < 2; i++) { + cout << "chaffs[" << i << "]:"; + cout << " dross: " << chaffs[i].dross; + cout << " slag: " << chaffs[i].slag << endl; + } + + return 0; +} diff --git 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z1`yq~`GxkT3Kw!kwJQn2;qSu^<`f+EC0AKG|tLRDFjMV5yRdgoF<}d%)6w1nq>p+kBA$ zJp>Je;f*=vLybksg6jws9E`%5GDjy19|plejBN$R_umzw`57Mh_zk6sd%r8s&$L+T za-HZc_@}7}+ZWr{NxD>czN9!IwxQy*AHZ{k3e#H^YajXd4g>VN*=f(e+nIVFX+K%U)?)C>Er#UCv^SqSlX-X~%wUMf9&-245Fgj(n=Xowup4UP} z7VVB%@d#=(XJmVxCo<*yar;@1=@Hn|9F%#UhcZ2=BXN$o{TdeIs8CMXp6A6(d0x!% z*`Ck;v)X=_cF6N=rjr^cd$MucKL?C*!v5{wYx;K^zkh&=EbjjQ8=y{mueM`4q3xJx zu^r~iF8kA3fhp@3vp?;!pVS6SN7+zQ_Q&*}UH1HYm}wVvoTIQELu#J4lt2Ex&XnKp zu)aHgwCa}f$New7T2s?gnq|WM$NYCtaoV5qDhbmVD{AVF|6jnJ_Vpi9icF7_&{5p+ z-+^o;{`Ih9&zpHaHeaXgg6)}Jf}q-A&-3(w24%r|#q56z0bRQspXZajzn&Az-N^p9 zAO8Wibc(jUey=sO2_VXZBKDE(nO*~9r@ioN)kZ}*4m)5w=Br>#7{~Yfm83@7`|S%u z;aaR19BI`&#nfi{V`A)3%LE +#include "sales.h" + +using namespace SALES; + +int main(){ + Sales s1, s2; + + setSales(s1); + + const double salesData[QUARTERS] = {300.0, 500.0, 250.0, 300.0}; + setSales(s2, salesData, QUARTERS); + + std::cout << "Sales for s1:" << std::endl; + showSales(s1); + std::cout << std::endl; + + std::cout << "Sales for s2:" << std::endl; + showSales(s2); + + return 0; +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.cpp" new file mode 100644 index 0000000..0f86724 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.cpp" @@ -0,0 +1,60 @@ +// sales.cpp +#include +#include "sales.h" + +namespace SALES{ + + using std::cin; + using std::cout; + using std::endl; + + void setSales(Sales &s, const double ar[], int n){ + + int a = n < QUARTERS ? n : QUARTERS; + double sum = 0.0; + s.max = s.min = ar[0]; + + for (int i = 0; i < a ; i++){ + s.sales[i] = ar[i]; + sum += ar[i]; + if (ar[i] > s.max) + s.max = ar[i]; + if (ar[i] < s.min) + s.min = ar[i]; + } + + for (int i = a; i < QUARTERS; i++){ + s.sales[i] = 0.0; + } + + s.average = sum / n; + } + + void setSales(Sales &s){ + + double sum = 0.0; + cout << "Please enter sales for 4 quarters:" << endl; + + for (int i = 0; i < QUARTERS; i++){ + cout << "Quarter " << (i + 1) << ": "; + cin >> s.sales[i]; + sum += s.sales[i]; + if (i == 0 || s.sales[i] > s.max) + s.max = s.sales[i]; + if (i == 0 || s.sales[i] < s.min) + s.min = s.sales[i]; + } + s.average = sum / QUARTERS; + } + + void showSales(const Sales &s){ + cout << "Sales: "; + for (int i = 0; i < QUARTERS; i++){ + cout << s.sales[i] << " "; + } + cout << endl; + cout << "Average: " << s.average << endl; + cout << "Max: " << s.max << endl; + cout << "Min: " << s.min << endl; + } +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.h" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.h" new file mode 100644 index 0000000..2cdf13d --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter9/9.4/sales.h" @@ -0,0 +1,22 @@ +namespace SALES +{ + const int QUARTERS = 4; + + struct Sales + { + double sales[QUARTERS]; + double average; + double max; + double min; + }; + + // 从数组 ar 中复制最多 4 项到 s 的 sales 成员中，并计算和存储输入项目的平均值、最大值和最小值； + // 如果 sales 中有剩余元素，则将其设置为 0 + void setSales(Sales &s, const double ar[], int n); + + // 交互式地收集 4 个季度的销售数据，存储在 s 的 sales 成员中，并计算和存储其平均值、最大值和最小值 + void setSales(Sales &s); + + // 显示结构 s 中的所有信息 + void showSales(const Sales &s); +} -- Gitee From 55a0194ff4c87295ac602d95dc94378b5da78e11 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E8=B0=A6?= <13581096+liu-qian-6@user.noreply.gitee.com> Date: Sat, 13 Jul 2024 19:33:14 +0800 Subject: [PATCH 2/4] chapter10exercise --- .../Chapter10/10.5/main" | Bin 0 -> 36560 bytes .../Chapter10/10.5/main.cpp" | 43 +++++++++++++++ .../Chapter10/10.5/stack.hpp" | 51 ++++++++++++++++++ .../Chapter10/10.6/Move.hpp" | 46 ++++++++++++++++ .../Chapter10/10.6/main" | Bin 0 -> 34616 bytes .../Chapter10/10.6/main.cpp" | 21 ++++++++ 6 files changed, 161 insertions(+) create mode 100755 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/stack.hpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/Move.hpp" create mode 100755 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main.cpp" diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main" new file mode 100755 index 0000000000000000000000000000000000000000..453aea2dca68c8f74e126c7488a71a96c8042e57 GIT binary patch literal 36560 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literal 0 HcmV?d00001 diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main.cpp" new file mode 100644 index 0000000..4b2db05 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/main.cpp" @@ -0,0 +1,43 @@ +#include +#include +#include "stack.hpp" + +typedef customer Item; + +int main() { + Stack stack; + Item cust; + double totalPayment = 0.0; + char input[35]; + + while (true) { + std::cout << "Enter fullname (or 'q' to quit): "; + std::cin.getline(input, 35); + + if (strcmp(input, "q") == 0) { + break; + } + + strcpy(cust.fullname, input); + + std::cout << "Enter payment: "; + std::cin >> cust.payment; + std::cin.ignore(); // 忽略cin保留的换行符 + + if (stack.push(cust)) { + std::cout << "Customer added to stack.\n"; + } else { + std::cout << "Failed to add customer.\n"; + } + } + + while (!stack.isempty()) { + stack.pop(cust); + totalPayment += cust.payment; + std::cout << "Removed customer: " << cust.fullname << ", Payment: " << cust.payment << "\n"; + } + + std::cout << "Total payment: " << totalPayment << std::endl; + + return 0; +} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/stack.hpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/stack.hpp" new file mode 100644 index 0000000..3b7e04b --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.5/stack.hpp" @@ -0,0 +1,51 @@ + +struct customer { + char fullname[35]; + double payment; +}; + +typedef customer Item; + +class Stack { + +private: + enum { MAX = 10 }; + Item items[MAX]; + int top; + +public: + Stack(); + bool isempty() const; + bool isfull() const; + bool push(const Item & item); + bool pop(Item & item); +}; + +Stack::Stack() { + top = 0; +} + +bool Stack::isempty() const { + return top == 0; +} + +bool Stack::isfull() const { + return top == MAX; +} + +bool Stack::push(const Item & item) { + if (top < MAX) { + items[top++] = item; + return true; + } else + return false; +} + +bool Stack::pop(Item & item) { + if (top > 0) { + item = items[--top]; + return true; + } else + return false; +} + diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/Move.hpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/Move.hpp" new file mode 100644 index 0000000..5e2d405 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/Move.hpp" @@ -0,0 +1,46 @@ +#ifndef MOVE_HPP +#define MOVE_HPP + +#include + +class Move { +private: + double x; + double y; + +public: + + Move(double a = 0, double b = 0); + + + void showmove() const; + + + Move add(const Move &m) const; + + + void reset(double a = 0, double b = 0); +}; + + +Move::Move(double a, double b) : x(a), y(b) {} + +void Move::showmove() const { + + std::cout << "Current x: " << x << ", Current y: " << y << std::endl; +} + + +Move Move::add(const Move &m) const { + + return Move(x + m.x, y + m.y); +} + + +void Move::reset(double a, double b) { + + x = a; + y = b; +} + +#endif diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main" new file mode 100755 index 0000000000000000000000000000000000000000..643a3b55cdb27e00c219ff6fe775e2096750f95d GIT binary patch literal 34616 zcmeHwdwg6~z3GRX0Xd+876nA~Xz>B`AP9O8@aQ=lk6`iW6;ZkM0lDArZ|yaiOw$9` zd;dG#pHKF0t>0_?)^GjRb9VN=wqxCDk7X%y*=m`RT&c#iyM&Wh8xEz~)dE$B`*hWy za)HjlU%N}rhA(+E!9c&uX9H5MiivUHWQ|q^8Vd<2ce=};rzr-i5}l`(?3V^_b(j_?{nqeaO-d6h^E|rS8l&6XP|QB3^e|v z`TSep>dS`Bpz$&=Tdv=g%Z978m@<%M@Y?)ps^@PhugjI|3Wyq&4SO_N8EDGe2s!%Y zy8SBt-_^~|GP^f(=U%6TC_O2G=A}&!7J>^3ZO|kcSub 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"a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main.cpp" new file mode 100644 index 0000000..7ee44ca --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter10/10.6/main.cpp" @@ -0,0 +1,21 @@ +#include "Move.hpp" + +int main() { + + Move move1(3, 4); + move1.showmove(); + + + Move move2(2, 6); + move2.showmove(); + + + Move move3 = move1.add(move2); + move3.showmove(); + + + move1.reset(0, 0); + move1.showmove(); + + return 0; +} -- Gitee From 89728d178d545b4f7fb4836210458c32297fb93f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E8=B0=A6?= <13581096+liu-qian-6@user.noreply.gitee.com> Date: Mon, 15 Jul 2024 13:36:13 +0800 Subject: [PATCH 3/4] update C++ exercises --- .../11.3/.vscode/c_cpp_properties.json" | 19 +++ .../Chapter11/11.3/.vscode/launch.json" | 27 ++++ .../Chapter11/11.3/.vscode/tasks.json" | 30 ++++ .../Chapter11/11.3/main.cpp" | 59 ++++++++ .../Chapter11/11.3/vector.cpp" | 130 ++++++++++++++++++ .../Chapter11/11.3/vector.h" | 43 ++++++ .../Chapter11/11.4/.vscode/tasks.json" | 28 ++++ .../Chapter11/11.4/main.cpp" | 21 +++ .../Chapter11/11.4/mytime3.cpp" | 85 ++++++++++++ .../Chapter11/11.4/mytime3.h" | 26 ++++ 10 files changed, 468 insertions(+) create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/main.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.h" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/main.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.cpp" create mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.h" diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" new file mode 100644 index 0000000..7c10f0c --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" @@ -0,0 +1,19 @@ +{ + "configurations": [ + { + "name": "Linux", + "includePath": [ + "${workspaceFolder}/**", + "/usr/include/**", + "/usr/local/include/**" + ], + "defines": [], + "compilerPath": "/usr/bin/g++", + "cStandard": "c11", + "cppStandard": "c++17", + "intelliSenseMode": "gcc-x64", + "compilerArgs": [] + } + ], + "version": 4 +} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" new file mode 100644 index 0000000..f4f9469 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" @@ -0,0 +1,27 @@ +{ + "version": "0.2.0", + "configurations": [ + { + "name": "g++ build and debug active file", + "type": "cppdbg", + "request": "launch", + "program": "${fileDirname}/${fileBasenameNoExtension}", + "args": [], + "stopAtEntry": false, + "cwd": "${workspaceFolder}", + "environment": [], + "externalConsole": false, + "MIMode": "gdb", + "setupCommands": [ + { + "description": "Enable pretty-printing for gdb", + "text": "-enable-pretty-printing", + "ignoreFailures": true + } + ], + "preLaunchTask": "C/C++: g++ 生成活动文件", + "miDebuggerPath": "/usr/bin/gdb", + "internalConsoleOptions": "openOnSessionStart" + } + ] +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" new file mode 100644 index 0000000..0154d26 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" @@ -0,0 +1,30 @@ +{ + "tasks": [ + { + "type": "cppbuild", + "label": "C/C++: g++ 生成活动文件", + "command": "/usr/bin/g++", + "args": [ + + "-fdiagnostics-color=always", + "-g", + //"${file}", + "*.cpp", + "-o", + "${fileDirname}/${fileBasenameNoExtension}" + ], + "options": { + "cwd": "${fileDirname}" + }, + "problemMatcher": [ + "$gcc" + ], + "group": { + "kind": "build", + "isDefault": true + }, + "detail": "调试器生成的任务。" + } + ], + "version": "2.0.0" +} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/main.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/main.cpp" new file mode 100644 index 0000000..6522792 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/main.cpp" @@ -0,0 +1,59 @@ +#include +#include "vector.h" +#include +#include +#include + +int main() { + using namespace std; + using VECTOR::Vector; + srand(time(0)); + + double direction; + Vector step; + Vector result(0.0, 0.0); + unsigned long steps; + double target; + double dstep; + int numTests; + + cout << "Enter the number of tests: "; + cin >> numTests; + + cout << "Enter target distance (q to quit): "; + while (cin >> target) { + cout << "Enter step length: "; + if (!(cin >> dstep)) + break; + + unsigned long maxSteps = 0; + unsigned long minSteps = ULONG_MAX; + unsigned long totalSteps = 0; + + for (int i = 0; i < numTests; ++i) { + result.reset(0.0, 0.0); + steps = 0; + while (result.magval() < target) { + direction = rand() % 360; + step.reset(dstep, direction, Vector::POL); + result = result + step; + steps++; + } + + if (steps > maxSteps) + maxSteps = steps; + if (steps < minSteps) + minSteps = steps; + totalSteps += steps; + } + + cout << "After " << numTests << " tests:\n"; + cout << "Maximum steps: " << maxSteps << endl; + cout << "Minimum steps: " << minSteps << endl; + cout << "Average steps: " << (double)totalSteps / numTests << endl; + + cout << "Enter target distance (q to quit): "; + } + cout << "Bye!\n"; + return 0; +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.cpp" new file mode 100644 index 0000000..8b1e3df --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.cpp" @@ -0,0 +1,130 @@ +// vector.cpp -- methods for the Vector class +#include +#include "vector.h" // includes + +using std::sqrt; +using std::sin; +using std::cos; +using std::atan; +using std::atan2; +using std::cout; + +namespace VECTOR { + + // compute degrees in one radian + const double Rad_to_deg = 45.0 / atan(1.0); + + void Vector ::set_mag() { + mag = sqrt(x * x + y * y); + + } + + void Vector::set_ang() { + if (x == 0.0 && y == 0.00) + ang = 0.0; + else + ang = atan2(y, x); + } + + // default constructor + Vector::Vector() { + x = y = mag =ang = 0.0; + mode = RECT; + } + + // construct vector from rectangular coordinates if form is RECT (the default) + // or else from polar coordinates if form is POL + Vector::Vector(double n1, double n2, Mode form) { + mode = form; + if (form == RECT) { + x = n1; + y = n2; + set_mag(); + set_ang(); + } else if (form == POL) { + double mag = n1; + double ang = n2 / Rad_to_deg; + x = mag * cos(ang); + y = mag * sin(ang); + } else { + cout << "Incorrect 3rd argument to Vector() -- vector set to 0\n"; + x = y = mag = ang = 0.0; + mode = RECT; + } + } + + // reset vector from rectangular coordinates if form is RECT (the default) + // or else from polar coordinates if form is POL + void Vector::reset(double n1, double n2, Mode form) { + mode = form; + if (form == RECT) { + x = n1; + y = n2; + set_mag(); + set_ang(); + } else if (form == POL) { + double mag = n1; + double ang = n2 / Rad_to_deg; + x = mag * cos(ang); + y = mag * sin(ang); + } else { + cout << "Incorrect 3rd argument to Vector() -- vector set to 0\n"; + x = y = mag = ang =0.0; + mode = RECT; + } + } + + Vector::~Vector() { + } + + // set to polar mode + void Vector::polar_mode() { + mode = POL; + } + + // set to rectangular mode + void Vector::rect_mode() { + mode = RECT; + } + + // operator overloading + // add two Vectors + Vector Vector::operator+(const Vector & b) const { + return Vector(x + b.x, y + b.y); + } + + // subtract Vector b from a + Vector Vector::operator-(const Vector & b) const { + return Vector(x - b.x, y - b.y); + } + + // reverse sign of Vector + Vector Vector::operator-() const { + return Vector(-x, -y); + } + + // multiply vector by n + Vector Vector::operator*(double n) const { + return Vector(n * x, n * y); + } + + // friend methods + // multiply n by Vector a + Vector operator*(double n, const Vector & a) { + return a * n; + } + + // display rectangular coordinates if mode is RECT, + // else display polar coordinates if mode is POL + std::ostream & operator<<(std::ostream & os, const Vector & v) { + if (v.mode == Vector::RECT) + os << "(x,y) = (" << v.x << ", " << v.y << ")"; + else if (v.mode == Vector::POL) + os << "(m,a) = (" << v.magval() << ", " + << v.angval() * Rad_to_deg << ")"; + else + os << "Vector object mode is invalid"; + return os; + } + +} // namespace VECTOR diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.h" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.h" new file mode 100644 index 0000000..ce75139 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/vector.h" @@ -0,0 +1,43 @@ +#ifndef VECTOR_H_ +#define VECTOR_H_ + +#include +#include + +namespace VECTOR { + class Vector { + public: + enum Mode { RECT, POL }; + private: + double x; // horizontal value + double y; // vertical value + double mag; + double ang; + Mode mode; // RECT or POL + // private methods for setting values + void set_mag(); + void set_ang(); + + public: + Vector(); + Vector(double n1, double n2, Mode form = RECT); + void reset(double n1, double n2, Mode form = RECT); + ~Vector(); + double xval() const { return x; } // report x value + double yval() const { return y; } // report y value + double magval() const {return mag;} // report magnitude + double angval() const {return ang;} // report angle + void polar_mode(); // set mode to POL + void rect_mode(); // set mode to RECT + // operator overloading + Vector operator+(const Vector & b) const; + Vector operator-(const Vector & b) const; + Vector operator-() const; + Vector operator*(double n) const; + // friends + friend Vector operator*(double n, const Vector & a); + friend std::ostream & operator<<(std::ostream & os, const Vector & v); + }; +} // namespace VECTOR + +#endif // VECTOR_H_ diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" new file mode 100644 index 0000000..cb8b75d --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" @@ -0,0 +1,28 @@ +{ + "tasks": [ + { + "type": "cppbuild", + "label": "C/C++: g++ 生成活动文件", + "command": "/usr/bin/g++", + "args": [ + "-fdiagnostics-color=always", + "-g", + "${file}", + "-o", + "${fileDirname}/${fileBasenameNoExtension}" + ], + "options": { + "cwd": "${fileDirname}" + }, + "problemMatcher": [ + "$gcc" + ], + "group": { + "kind": "build", + "isDefault": true + }, + "detail": "调试器生成的任务。" + } + ], + "version": "2.0.0" +} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/main.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/main.cpp" new file mode 100644 index 0000000..89b8abf --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/main.cpp" @@ -0,0 +1,21 @@ +#include +#include "mytime3.h" + +int main() { + Time t1(1, 30); + Time t2(5, 40); + + std::cout << "Time 1: " << t1 << std::endl; + std::cout << "Time 2: " << t2 << std::endl; + + Time t3 = t1 + t2; + std::cout << "Sum: " << t3 << std::endl; + + Time t4 = t1 - t2; + std::cout << "Difference: " << t4 << std::endl; + + Time t5 = t1 * 2.5; + std::cout << "Time 1 multiplied by 3: " << t5 << std::endl; + + return 0; +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.cpp" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.cpp" new file mode 100644 index 0000000..5547210 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.cpp" @@ -0,0 +1,85 @@ +#include "mytime3.h" + + +Time::Time() : hours(0), minutes(0) {} + + +Time::Time(int h, int m) : hours(h), minutes(m) { + while (minutes >= 60) { + hours++; + minutes -= 60; + } + while (minutes < 0) { + hours--; + minutes += 60; + } + if (hours < 0) hours = 0; +} + + +void Time::AddMin(int m) { + minutes += m; + while (minutes >= 60) { + hours++; + minutes -= 60; + } +} + + +void Time::AddHr(int h) { + hours += h; +} + + +void Time::Reset(int h, int m) { + hours = h; + minutes = m; + while (minutes >= 60) { + hours++; + minutes -= 60; + } + while (minutes < 0) { + hours--; + minutes += 60; + } + if (hours < 0) hours = 0; +} + + +Time operator+(const Time& t1, const Time& t2) { + Time sum; + sum.minutes = t1.minutes + t2.minutes; + sum.hours = t1.hours + t2.hours + sum.minutes / 60; + sum.minutes %= 60; + return sum; +} + + +Time operator-(const Time& t1, const Time& t2) { + Time diff; + int total1 = t1.minutes + 60 * t1.hours; + int total2 = t2.minutes + 60 * t2.hours; + diff.minutes = (total1 - total2) % 60; + diff.hours = (total1 - total2) / 60; + return diff; +} + + +Time operator*(double n, const Time& t) { + Time result; + long totalMinutes = t.hours * n * 60 + t.minutes * n; + result.hours = totalMinutes / 60; + result.minutes = totalMinutes % 60; + return result; +} + + +Time operator*(const Time& t, double n) { + return n * t; +} + + +std::ostream& operator<<(std::ostream& os, const Time& t) { + os << t.hours << " hours, " << t.minutes << " minutes"; + return os; +} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.h" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.h" new file mode 100644 index 0000000..7d644f6 --- /dev/null +++ "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/mytime3.h" @@ -0,0 +1,26 @@ +#ifndef MYTIME3_H +#define MYTIME3_H + +#include + +class Time { +private: + int hours; + int minutes; + +public: + Time(); + Time(int h, int m = 0); + + void AddMin(int m); + void AddHr(int h); + void Reset(int h = 0, int m = 0); + + friend Time operator+(const Time& t1, const Time& t2); + friend Time operator-(const Time& t1, const Time& t2); + friend Time operator*(double n, const Time& t); + friend Time operator*(const Time& t, double n); + friend std::ostream& operator<<(std::ostream& os, const Time& t); +}; + +#endif -- Gitee From 9da62cc7e2c34bd5a2e1f93fb59f96030c5b3805 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E8=B0=A6?= <13581096+liu-qian-6@user.noreply.gitee.com> Date: Mon, 15 Jul 2024 13:42:51 +0800 Subject: [PATCH 4/4] --- .../11.3/.vscode/c_cpp_properties.json" | 19 ------------ .../Chapter11/11.3/.vscode/launch.json" | 27 ----------------- .../Chapter11/11.3/.vscode/tasks.json" | 30 ------------------- .../Chapter11/11.4/.vscode/tasks.json" | 28 ----------------- 4 files changed, 104 deletions(-) delete mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" delete mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" delete mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" delete mode 100644 "C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" deleted file mode 100644 index 7c10f0c..0000000 --- "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/c_cpp_properties.json" +++ /dev/null @@ -1,19 +0,0 @@ -{ - "configurations": [ - { - "name": "Linux", - "includePath": [ - "${workspaceFolder}/**", - "/usr/include/**", - "/usr/local/include/**" - ], - "defines": [], - "compilerPath": "/usr/bin/g++", - "cStandard": "c11", - "cppStandard": "c++17", - "intelliSenseMode": "gcc-x64", - "compilerArgs": [] - } - ], - "version": 4 -} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" deleted file mode 100644 index f4f9469..0000000 --- "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/launch.json" +++ /dev/null @@ -1,27 +0,0 @@ -{ - "version": "0.2.0", - "configurations": [ - { - "name": "g++ build and debug active file", - "type": "cppdbg", - "request": "launch", - "program": "${fileDirname}/${fileBasenameNoExtension}", - "args": [], - "stopAtEntry": false, - "cwd": "${workspaceFolder}", - "environment": [], - "externalConsole": false, - "MIMode": "gdb", - "setupCommands": [ - { - "description": "Enable pretty-printing for gdb", - "text": "-enable-pretty-printing", - "ignoreFailures": true - } - ], - "preLaunchTask": "C/C++: g++ 生成活动文件", - "miDebuggerPath": "/usr/bin/gdb", - "internalConsoleOptions": "openOnSessionStart" - } - ] -} diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" deleted file mode 100644 index 0154d26..0000000 --- "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.3/.vscode/tasks.json" +++ /dev/null @@ -1,30 +0,0 @@ -{ - "tasks": [ - { - "type": "cppbuild", - "label": "C/C++: g++ 生成活动文件", - "command": "/usr/bin/g++", - "args": [ - - "-fdiagnostics-color=always", - "-g", - //"${file}", - "*.cpp", - "-o", - "${fileDirname}/${fileBasenameNoExtension}" - ], - "options": { - "cwd": "${fileDirname}" - }, - "problemMatcher": [ - "$gcc" - ], - "group": { - "kind": "build", - "isDefault": true - }, - "detail": "调试器生成的任务。" - } - ], - "version": "2.0.0" -} \ No newline at end of file diff --git "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" "b/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" deleted file mode 100644 index cb8b75d..0000000 --- "a/C++/codes/2024-07/\345\210\230\350\260\246/C++PrimerPlusExercises/Chapter11/11.4/.vscode/tasks.json" +++ /dev/null @@ -1,28 +0,0 @@ -{ - "tasks": [ - { - "type": "cppbuild", - "label": "C/C++: g++ 生成活动文件", - "command": "/usr/bin/g++", - "args": [ - "-fdiagnostics-color=always", - "-g", - "${file}", - "-o", - "${fileDirname}/${fileBasenameNoExtension}" - ], - "options": { - "cwd": "${fileDirname}" - }, - "problemMatcher": [ - "$gcc" - ], - "group": { - "kind": "build", - "isDefault": true - }, - "detail": "调试器生成的任务。" - } - ], - "version": "2.0.0" -} \ No newline at end of file -- Gitee