diff --git a/POJ/1007.cpp b/POJ/1007.cpp
new file mode 100644
index 0000000..add6e31
--- /dev/null
+++ b/POJ/1007.cpp
@@ -0,0 +1,72 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+using namespace std;
+typedef struct
+{
+    int inversion;
+    char* pointer_to_string;
+}pack;
+pack list[105];
+
+char data[105][64];
+
+
+void quicksort(pack* a,int left,int right)
+{
+    if(left>=right) return;
+    int keyvalue=a[left].inversion;
+    int i=left,j=right;
+    while(i<j)
+    {
+        while(i<j&&a[j].inversion>=keyvalue)
+        {
+            j--;
+        }
+        while(i<j&&a[i].inversion<=keyvalue)
+        {
+            i++;
+        }
+        pack tmp=a[i];
+        a[i]=a[j];
+        a[j]=tmp;
+    }
+    if(i==j)
+    {
+        pack tmp=a[left];
+        a[left]=a[j];
+        a[j]=tmp;
+    }
+    quicksort(a,left,i-1);
+    quicksort(a,i+1,right);
+}
+
+
+int main()
+{
+    int max,length;
+    scanf("%d %d%*c",&length,&max);
+    for(int i=0;i<max;i++)
+    {
+        scanf("%s",&data[i][0]);
+        list[i].pointer_to_string=&data[i][0];
+        int inversion=0;
+        for(int ii=0;ii<length-1;ii++)
+        {
+            for(int j=ii+1;j<length;j++)
+            {
+                if(list[i].pointer_to_string[ii]>list[i].pointer_to_string[j])
+                {
+                    inversion++;
+                }
+            }
+        }
+        list[i].inversion=inversion;
+    }
+    quicksort(list,0,max-1);
+    for(int i=0;i<max;i++)
+    {
+        printf("%s\n",list[i].pointer_to_string);
+    }
+    return 0;
+}