4可用

ex4/ex4.cpp

@@ -6,9 +6,9 @@ int main()
     int flag = 0;
     int temp[5];
 
-    clock_t astart_t, aend_t;
+    clock_t astart_t, aend_t, a_start_t, a_end_t;
 
-    clock_t bstart_t, bend_t;
+    clock_t bstart_t, bend_t, b_start_t, b_end_t;
 
     srand(time(NULL));
     int len;
@@ -16,60 +16,75 @@ int main()
     scanf("%d", &len);
     printf("生成数组\n");
     // scanf("%d", &len);
-    Vec a(len,1);
+    Vec a(len, 1);
-    Vec b(len,2);
+    Vec b(len, 2);
+    Vec a_(&a);
+    Vec b_(&b);
+    printf("A归并排序...\n");
 
-    int amode =0,bmode=0;
+    astart_t = clock();
-    printf("排序方法 1merge 2bubble\n");
+    a.mergeSort(0, a.getused());
-    scanf("%d %d",&amode,&bmode);
+    aend_t = clock();
 
-    if(amode==1)
+    printf("A冒泡排序...\n");
-    {
+    a_start_t = clock();
-        astart_t = clock();
+    a_.bubbleSort();
-        a.mergeSort(0,a.getused());
+    a_end_t = clock();
-        aend_t = clock();
-    }
-    else if(amode==2)
-    {
-        astart_t = clock();
-        a.bubbleSort();
-        aend_t = clock();
-    }
-    if(bmode==1)
-    {
-        bstart_t = clock();
-        b.mergeSort(0,a.getused());
-        bend_t = clock();
-    }
-    else if(bmode==2)
-    {   
-        bstart_t = clock();
-        b.bubbleSort();
-        bend_t = clock();
-    }
-    printf("A运算时间: %.4f 秒\n", ((double)(aend_t - astart_t) / CLOCKS_PER_SEC));
-    printf("B运算时间: %.4f 秒\n", ((double)(bend_t - bstart_t) / CLOCKS_PER_SEC));
 
-    printf("输出样本A:\n[0-19]\n");
+    printf("B归并排序...\n");
-    for(int i=0;i<=19;i++)
+    bstart_t = clock();
-        printf("%d\n",a.get(i));
+    b.mergeSort(0, a.getused());
+    bend_t = clock();
+
+    printf("B冒泡排序...\n");
+    b_start_t = clock();
+    b_.bubbleSort();
+    b_end_t = clock();
+
+    printf("A归并运算时间: %.4f 秒\n", ((double)(aend_t - astart_t) / CLOCKS_PER_SEC));
+    printf("A冒泡运算时间: %.4f 秒\n", ((double)(a_end_t - a_start_t) / CLOCKS_PER_SEC));
+    printf("B归并运算时间: %.4f 秒\n", ((double)(bend_t - bstart_t) / CLOCKS_PER_SEC));
+    printf("B冒泡运算时间: %.4f 秒\n", ((double)(b_end_t - b_start_t) / CLOCKS_PER_SEC));
+
+    printf("输出归并样本A:\n[0-19]\n");
+    for (int i = 0; i <= 19; i++)
+        printf("%d\n", a.get(i));
     printf("[50000-50019]\n");
-    for(int i=50000;i<=50019;i++)
+    for (int i = 50000; i <= 50019; i++)
-        printf("%d\n",a.get(i));
+        printf("%d\n", a.get(i));
     printf("[99980-99999]\n");
-    for(int i=99980;i<=99999;i++)
+    for (int i = 99980; i <= 99999; i++)
-        printf("%d\n",a.get(i));
+        printf("%d\n", a.get(i));
 
-    printf("输出样本B:\n[0-19]\n");
+    printf("输出冒泡样本A:\n[0-19]\n");
-    for(int i=0;i<=19;i++)
+    for (int i = 0; i <= 19; i++)
-        printf("%d\n",b.get(i));
+        printf("%d\n", a_.get(i));
     printf("[50000-50019]\n");
-    for(int i=50000;i<=50019;i++)
+    for (int i = 50000; i <= 50019; i++)
-        printf("%d\n",b.get(i));
+        printf("%d\n", a_.get(i));
     printf("[99980-99999]\n");
-    for(int i=99980;i<=99999;i++)
+    for (int i = 99980; i <= 99999; i++)
-        printf("%d\n",b.get(i));
+        printf("%d\n", a_.get(i));
 
+    printf("输出归并样本B:\n[0-19]\n");
+    for (int i = 0; i <= 19; i++)
+        printf("%d\n", b.get(i));
+    printf("[50000-50019]\n");
+    for (int i = 50000; i <= 50019; i++)
+        printf("%d\n", b.get(i));
+    printf("[99980-99999]\n");
+    for (int i = 99980; i <= 99999; i++)
+        printf("%d\n", b.get(i));
+
+    printf("输出冒泡样本B:\n[0-19]\n");
+    for (int i = 0; i <= 19; i++)
+        printf("%d\n", b_.get(i));
+    printf("[50000-50019]\n");
+    for (int i = 50000; i <= 50019; i++)
+        printf("%d\n", b_.get(i));
+    printf("[99980-99999]\n");
+    for (int i = 99980; i <= 99999; i++)
+        printf("%d\n", b_.get(i));
 
     system("pause");
 }

ex4/vec.cpp

@@ -236,3 +236,14 @@ void Vec::merge(int lo, int mi, int hi)
         _v[i] = temp[k];
     delete[] temp;
 }
+
+Vec::Vec(Vec *v)
+{
+    _used = v->getused();
+    _len = v->getlen();
+    _v = new int[_len];
+
+    for(int i=0;i<=_used;i++)
+        _v[i]=(*v)[i];
+
+}

ex4/vec.h

@@ -23,6 +23,8 @@ private:
 public:
   Vec(int _len,int mode);
 
+  Vec(Vec* v);
+
   int get(int a);
 
   int search(int value);
@@ -51,6 +53,11 @@ public:
 
   void mergeSort(int lo, int hi);
 
+  int operator[](int i)
+    {
+      return _v[i];
+    }
+
 private:
   void merge(int lo, int mi, int hi);
 };