diff --git a/int_divide.py b/int_divide.py
index 288c907..6a8a13d 100644
--- a/int_divide.py
+++ b/int_divide.py
@@ -22,7 +22,7 @@ def divide(m,r,out):
         m1-=1
     return False
 
-
+                
 n=6
 out=[]
 divide(n-1,n,out)
diff --git a/int_divide3.py b/int_divide3.py
new file mode 100644
index 0000000..3f0cc50
--- /dev/null
+++ b/int_divide3.py
@@ -0,0 +1,31 @@
+"""
+将一个整数,分拆为若干整数的和。例如实现:
+4=4
+4=3+1
+4=2+2
+4=2+1+1
+4=1+1+1+1
+
+所以divide(4) == 5
+
+这里会将输出这样的分法有多少种。采用动态规划计算,提高速度
+参考链接中的C++版本
+https://github.com/Sean16SYSU/Algorithms4N/blob/master/Dynamic%20Programming/%E6%95%B4%E6%95%B0%E5%88%92%E5%88%86/Interger_dividence_dp.cpp
+"""
+def divide(n):
+    arr = [[0 for i in range(n+1)] for j in range(n+1)]
+    for i in range(1, n+1):
+        arr[i][i] = 1
+    for i in range(1, n+1):
+        for j in range(1, n+1):
+            if i < j:
+                arr[i][j] = arr[i][i]
+            elif i == j:
+                arr[i][j] = 1 + arr[i][j-1]
+            else:
+                arr[i][j] = arr[i][j-1] + arr[i-j][j]
+    return arr[n][n] 
+
+
+if __name__=="__main__":
+    print(divide(4))
\ No newline at end of file
diff --git a/is_prime.py b/is_prime.py
index 57e4ccf..1621985 100644
--- a/is_prime.py
+++ b/is_prime.py
@@ -42,7 +42,7 @@ def isPrime3(n):
         if i * i > n:
             return True
         if n % i == 0:
-            return Fals
+            return False
 
 #方法四
 
diff --git a/same_element_in_list.md b/same_element_in_list.md
index 7097fe0..dd7704a 100644
--- a/same_element_in_list.md
+++ b/same_element_in_list.md
@@ -1,57 +1,61 @@
-#问题
+# 问题
 
 统计一个一维数组中的各个元素的个数,然后删除多出来的重复元素,并输出结果。
 
 例如:[1,2,2,2,3,3,3,3,3]-->[1,2,3]
 
-#解决思路
+## 解决思路
 
 将重复元素的列表中的重复元素进行统计,并将统计结果放在dictionary中,key为元素,value为该元素的个数
 
-**更新此步方法:**上述步骤的功能,能够通过另外一个方法实现,即collections.Counter()
+**更新此步方法:** 上述步骤的功能,能够通过另外一个方法实现,即collections.Counter()
 
 然后通过for获取key,得到一个新的列表,就是没有重复元素的列表
 
 
 
-#解决(Python)
+## 解决(Python)
 
-	#!/usr/bin/env python
-	#coding:utf-8
-	
-	
-	def count_element(one_list):
-	    element_number = {}
-	    for e in one_list:
-	        number = one_list.count(e)      #数出某个元素的个数
-	        element_number[e] = number     #生成类似:{1:1,2:3,3:5}的结果,key-element,value-元素的个数
-	    return element_number
+```python
+#!/usr/bin/env python
+#coding:utf-8
 
-    #应用collections.Counter()实现count_element(one_list)函数功能,为了便于调试和说明,在另外一个函数里面使用
-    
-    from collections import Counter
 
-    def count_element2(one_list):
-        return Counter(one_list)
+def count_element(one_list):
+	element_number = {}
+	for e in one_list:
+		number = one_list.count(e)      #数出某个元素的个数
+		element_number[e] = number     #生成类似:{1:1,2:3,3:5}的结果,key-element,value-元素的个数
+	return element_number
 
-	
-	def no_repeat_element(element_number):      #element_number是count_element(one_list)的返回值
-	    no_repeat_list = [key for key in element_number]
-	    return no_repeat_list
-	
-	if __name__=="__main__":
-	
-	    ls = ["a","a","b","b",'b','c','c']
-	    el_num=count_element(ls)
-	    print el_num
-	    no_repeat = no_repeat_element(el_num)
-	    print no_repeat
+#应用collections.Counter()实现count_element(one_list)函数功能,为了便于调试和说明,在另外一个函数里面使用
 
-#解决(python)
+from collections import Counter
+
+def count_element2(one_list):
+	return Counter(one_list)
+
+
+def no_repeat_element(element_number):      #element_number是count_element(one_list)的返回值
+	no_repeat_list = [key for key in element_number]
+	return no_repeat_list
+
+if __name__=="__main__":
+	ls = ["a","a","b","b",'b','c','c']
+	el_num=count_element(ls)
+	print el_num
+	no_repeat = no_repeat_element(el_num)
+	print no_repeat
+
+```
+
+## 解决(python)
 
 无重复元素个数统计,只有新数组输出
 
-    list_a = [1,1,2,2,2,3,3,3,3,3,]
-    list_b = list(set(list_a))
+```python
+list_a = [1,1,2,2,2,3,3,3,3,3,]
+list_b = list(set(list_a))
+```
 
-##qiwsir#gmail.com (# to @)
+## qiwsir#gmail.com (# to @)