作业罢了

.gitignore

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+*.exe
+tempCodeRunnerFile.cpp

.vscode/c_cpp_properties.json

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+{
+    "configurations": [
+        {
+            "name": "Win32",
+            "includePath": [
+                "${workspaceFolder}/**",
+                "C:/Project/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/include",
+                "C:/Project/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/include-fixed",
+                "C:/Project/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/include"
+            ],
+            "defines": [
+                "_DEBUG",
+                "UNICODE",
+                "_UNICODE"
+            ],
+            "compilerPath": "C:/Project/mingw64/bin/gcc.exe",
+            "cStandard": "c17",
+            "cppStandard": "c++17",
+            "intelliSenseMode": "windows-gcc-x64"
+        }
+    ],
+    "version": 4
+}

.vscode/launch.json

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+{
+    // 使用 IntelliSense 了解相关属性。 
+    // 悬停以查看现有属性的描述。
+    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "gcc.exe",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "C:/Project/mingw64/bin",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "C:\\Project\\mingw64\\bin\\gdb.exe",
+            "setupCommands": [
+                {
+                    "description": "为 gdb 启用整齐打印",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "C/C++: gcc.exe 生成活动文件"
+        }
+    ]
+}

.vscode/settings.json

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+{
+    "C_Cpp.errorSquiggles": "Enabled",
+    "files.encoding": "gb2312"
+}

.vscode/tasks.json

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+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc.exe 生成活动文件",
+            "command": "C:/Project/mingw64/bin/gcc.exe",
+            "args": [
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}\\${fileBasenameNoExtension}.exe"
+            ],
+            "options": {
+                "cwd": "C:/Project/mingw64/bin"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "调试器生成的任务。"
+        }
+    ],
+    "version": "2.0.0"
+}

ex1.cpp

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+#include <stdio.h>
+// #include <iostream>
+#include <stdlib.h>
+#include <time.h>
+
+#define LENGTH 10000
+//数组长度
+
+#define OUTPUT
+//是否输出
+
+// #define RANDOM
+//随机数
+
+
+#define MODE_1
+//MODE_1: 迭代
+//MODE_2: 递归
+
+
+int a[LENGTH];
+void init()
+{
+   #ifdef RANDOM
+      srand(time(NULL));
+   #endif
+
+   for(int i = 0 ; i < LENGTH ; i++)
+
+   #ifdef RANDOM
+       a[i]=1+rand()%LENGTH;
+   #else
+      a[i]=LENGTH-i;
+   #endif
+}
+
+void swap(int *a,int *b)
+{
+   int c = *a;
+   *a = *b;
+   *b = c;
+}
+
+#ifdef MODE_1
+void bobblesort1A(int a[],int n)
+{
+   bool sorted = false;
+   A:
+      sorted = true;
+   
+      for(int i = 1 ; i < n ; i++)
+      {
+         if(a[i-1] > a[i])
+         {
+            swap(&a[i-1],&a[i]);
+
+           sorted=false;
+         }
+         
+      }
+      n--;
+   if(sorted==false)
+      goto A;
+}
+
+#elif defined MODE_2
+void bobblesort1A(int a[],int n)
+{
+   bool sorted = false;
+      sorted = true;
+      
+      for(int i = 1 ; i < n ; i++)
+      {
+         if(a[i-1] > a[i])
+         {
+            swap(&a[i-1],&a[i]);
+
+           sorted=false;
+         }
+         
+      }
+      n--;
+   if(n==1)
+      return;
+
+   bobblesort1A(a,n);
+}
+#endif
+
+int main(){
+   init();
+   clock_t start_t, end_t;
+   double total_t;
+
+   #ifdef OUTPUT
+   printf("Before\n");
+   for(int i=0;i<LENGTH;i++)
+      printf("%d \n",a[i]);
+   #endif
+
+   start_t = clock();
+   bobblesort1A(a,LENGTH);
+   end_t = clock();
+
+   #ifdef OUTPUT
+   printf("After\n");
+   for(int i=0;i<LENGTH;i++)
+      printf("%d \n",a[i]);
+   #endif
+
+   printf("运算时间: %.4f 秒\n",((double)(end_t - start_t) / CLOCKS_PER_SEC));
+   system("pause");
+
+}

ex2.cpp

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+#include <stdio.h>
+#include <iostream>
+#include <stdlib.h>
+#include <time.h>
+
+
+class Vec
+{
+  private:
+  
+    int *v;
+    int LEN;
+    int USED;
+
+
+  public:
+
+    Vec(int len)
+    {
+      LEN=len*2;
+      v=new int[LEN];
+      USED=9;
+
+      for(int i=0;i<10;i++)
+        v[i]=i+1;
+      
+      for(int i=0;i<10;i++)
+        swap(i,rand()%10);
+    }
+
+    int get(int a)
+    {
+      return v[a];
+    }
+
+    void put(int a,int value)
+    {
+      v[a]=value;
+    }
+
+    void swap(int a, int b)
+    {
+        int temp = v[a];
+        v[a] = v[b];
+        v[b] = temp;
+    }
+
+    void expand()
+    {
+      LEN=LEN*2;
+      int *p=new int[LEN];
+
+      for(int i=0;i<=USED;i++)
+        p[i]=v[i];
+      
+      delete[] v;
+      v=p;
+    }
+
+    void shrink()
+    {
+      LEN=LEN>>1;
+      int *p=new int[LEN];
+
+      for(int i=0;i<=USED;i++)
+        p[i]=v[i];
+      
+      delete[] v;
+      v=p;
+    }
+
+    int insert(int locate,int value)
+    {
+      if(locate<0||locate>USED)
+        return 1;
+
+      USED++;
+      if(USED>=LEN)
+        expand();
+
+      for(int i=USED;i>locate;i--)
+        v[i]=v[i-1];
+      
+      v[locate]=value;
+
+      return 0;
+    }
+
+    int del(int locate,int value)
+    {
+
+      if(locate<0||((USED-value)<0)||((locate+value-1)>USED))
+        return 1;
+
+      USED=USED-value;
+
+      for(int i=locate;i<=USED;i++)
+        v[i]=v[i+value];
+
+      if( ( (double)USED/(double)LEN )<=0.3 )
+        shrink();
+
+      return 0;
+    }
+
+    int find(int value)
+    {
+      int i = 0;
+      for(i;i<=USED;i++)
+      {
+        if(v[i]==value)
+        {
+          return i;
+        }
+      }
+
+      return -1;
+    }
+
+    void printall()
+    {
+      for(int i=0;i<USED;i++)
+      printf("%d\n",v[i]);
+    }
+
+    int getlen()
+    {
+      return LEN;
+    }
+
+    int getused()
+    {
+      return USED;
+    }
+};
+
+int main()
+{
+  srand(time(NULL));
+
+  Vec v(10);
+  int temp[10]={0};
+  int flag;
+
+
+  printf("初始化，输出数组\n");
+  v.printall();
+
+
+  while(1)
+  {
+    printf("选择操作:\n1.插入\n2.删除\n3.查找\n");
+    scanf("%d",&flag);
+
+   switch(flag)
+   {
+    case 1:
+      printf("输入秩与待插入数值\n");
+      scanf("%d %d",&temp[0],&temp[1]);
+      (v.insert(temp[0],temp[1]))?(printf("非法输入\n")):(printf("输出数组\n"));
+      v.printall();
+      break;
+
+    case 2:
+      printf("输入秩与待删除个数\n");
+      scanf("%d %d",&temp[0],&temp[1]);
+      (v.del(temp[0],temp[1]))?(printf("非法输入\n")):(printf("输出数组\n"));
+      v.printall();
+      break;
+
+    case 3:
+      printf("输入要查找的数值\n");
+      scanf("%d",&temp[0]);
+      temp[2]=v.find(temp[0]);
+      
+      (temp[2]==-1)?(printf("无此元素\n")):(printf("秩为%d \n",temp[2]));
+      break;
+
+     default:
+     printf("返回菜单\n");
+   }
+
+
+  
+  
+   flag=0;
+  }
+  return 0;
+}

ex3.cpp

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+#include <stdio.h>
+#include <stdlib.h>
+int main()
+{
+    printf("测试");
+    system("pause");
+    return 0;
+}

workspace.code-workspace

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+{
+	"folders": [
+		{
+			"path": "."
+		}
+	],
+	"settings": {
+		"files.associations": {
+			"ctime": "cpp",
+			"iostream": "cpp",
+			"new": "cpp"
+		},
+		"files.encoding": "gb2312"
+	},
+	"launch": {
+		"version": "0.2.0",
+		"configurations": [
+			{
+				"name": "gcc.exe - 生成和调试活动文件",
+				"type": "cppdbg",
+				"request": "launch",
+				"program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
+				"args": [],
+				"stopAtEntry": false,
+				"cwd": "C:/Project/mingw64/bin",
+				"environment": [],
+				"externalConsole": false,
+				"MIMode": "gdb",
+				"miDebuggerPath": "C:\\Project\\mingw64\\bin\\gdb.exe",
+				"setupCommands": [
+					{
+						"description": "为 gdb 启用整齐打印",
+						"text": "-enable-pretty-printing",
+						"ignoreFailures": true
+					}
+				],
+				"preLaunchTask": "C/C++: gcc.exe 生成活动文件"
+			}
+		]
+	}
+}