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101 lines (101 loc) · 1.72 KB
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//判断一个经过某种排序到一部分的结果是插入拍寻还是归并排序
#include <iostream>
using namespace std;
#define MAX 105
int array1[MAX],array2[MAX];
int N;
void InsertSort(int start)
{
int i,tmp,min,pick;
tmp = array2[start];
pick=0;
while (pick<start)
{
if (array2[pick]>array2[start]) break;
pick++;
}
for(i=start;i>pick;i--)
{
array2[i] = array2[i-1];
}
array2[pick] = tmp;
}
bool cmp(int* array1,int* array2)
{
for(int i=0;i<N;i++)
if (array1[i]!=array2[i]) return false;
return true;
}
void MergeSort()
{
int i,j,k,tmp;
int flag=1,base=1;
while (flag)
{
if (cmp(array1,array2)) flag = 0;
base *=2;
for(i=0;i<N/base;i++)
for(j=0;j<base-1;j++)
for(k=j+1;k<base;k++)
{
if (array1[i*base+k]<array1[i*base+j])
{
tmp = array1[i*base+k];
array1[i*base+k] = array1[i*base+j];
array1[i*base+j] = tmp;
}
}
for(j=N/base*base;j<N-1;j++)
for(k=j+1;k<N;k++)
{
if (array1[k]<array1[j])
{
tmp = array1[k];
array1[k] = array1[j];
array1[j] = tmp;
}
}
}
}
void Print(int* array)
{
for(int i=0;i<N;i++)
if (0 == i) printf("%d",array[i]);
else printf(" %d",array[i]);
}
int main()
{
int i,len,flag;
cin >> N;
for(i=0;i<N;i++)
cin>>array1[i];
for(i=0;i<N;i++)
cin>>array2[i];
len = 1;
while (len<N)
{
if(array2[len]<array2[len-1]) break;
len++;
}
flag = 1;
for(i=len;i<N;i++) //找到第一个不顺序的节点,看从他开始到最后是否一样,一样:表明未处理,即为插入排序
if (array1[i] != array2[i])
{
flag = 0;
break;
}
if (flag)
{
printf("Insertion Sort\n");
InsertSort(len);
Print(array2);
}
else
{
printf("Merge Sort\n");
MergeSort();
Print(array1);
}
//system("pause");
return 0;
}