diff --git a/notes/Leetcode 题解.md b/notes/Leetcode 题解.md
index 0cc169dc..89e32b92 100644
--- a/notes/Leetcode 题解.md	
+++ b/notes/Leetcode 题解.md	
@@ -1999,7 +1999,15 @@ public int wiggleMaxLength(int[] nums) {
 
 ×ÛÉÏ£¬×¹«¹²×ÓϵÁеÄ״̬תÒÆ·½³ÌΪ£º
 
-![](http://latex.codecogs.com/gif.latex?\\\\dp[i][j]=\left\{\begin{array}{rcl}dp[i-1][j-1]&&{S1_i==S2_j}\\max(dp[i-1][j],dp[i][j-1])&&{S1_i<>S2_j}\end{array}\right.)
+![](http://latex.codecogs.com/gif.latex?\\\\
+dp[i][j]=\left\{
+\begin{array}{rcl}
+dp[i-1][j-1]&&{S1_i==S2_j}\\
+max(dp[i-1][j],dp[i][j-1])&&{S1_i<>S2_j}
+\end{array}\right.
+)
+
+![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/1dc481cc-99f6-4fa8-8f68-fbd563995bf5.png)
 
 ¶ÔÓÚ³¤¶ÈΪ N µÄÐòÁÐ S<sub>1</sub> ºÍ ³¤¶ÈΪ M µÄÐòÁÐ S<sub>2</sub>£¬dp[N][M] ¾ÍÊÇÐòÁÐ S<sub>1</sub> ºÍÐòÁÐ S<sub>2</sub> µÄ×¹«¹²×ÓÐòÁг¤¶È¡£
 
@@ -2064,7 +2072,6 @@ public int knapsack(int W, int N, int[] weights, int[] values) {
 
 ÒòΪ dp[j-w] ±íʾ dp[i-1][j-w]£¬Òò´Ë²»ÄÜÏÈÇó dp[i][j-w] ·ÀÖ¹½« dp[i-1][j-w] ¸²¸Ç¡£Ò²¾ÍÊÇ˵ҪÏȼÆËã dp[i][j] ÔÙ¼ÆËã dp[i][j-w]£¬ÔÚ³ÌÐòʵÏÖʱÐèÒª°´µ¹ÐòÀ´Ñ­»·Çó½â¡£
 
-
 **ÎÞ·¨Ê¹ÓÃÌ°ÐÄËã·¨µÄ½âÊÍ**
 
 0-1 ±³°üÎÊÌâÎÞ·¨Ê¹ÓÃÌ°ÐÄËã·¨À´Çó½â£¬Ò²¾ÍÊÇ˵²»ÄÜ°´ÕÕÏÈÌí¼ÓÐÔ¼Û±È×î¸ßµÄÎïÆ·À´´ïµ½×îÓÅ£¬ÕâÊÇÒòΪÕâÖÖ·½Ê½¿ÉÄÜÔì³É±³°ü¿Õ¼äµÄÀË·Ñ£¬´Ó¶øÎÞ·¨´ïµ½×îÓÅ¡£¿¼ÂÇÏÂÃæµÄÎïÆ·ºÍÒ»¸öÈÝÁ¿Îª 5 µÄ±³°ü£¬Èç¹ûÏÈÌí¼ÓÎïÆ· 0 ÔÙÌí¼ÓÎïÆ· 1£¬ÄÇôֻÄÜ´æ·ÅµÄ¼ÛֵΪ 16£¬ÀË·ÑÁË´óСΪ 2 µÄ¿Õ¼ä¡£×îÓŵķ½Ê½ÊÇ´æ·ÅÎïÆ· 1 ºÍÎïÆ· 2£¬¼ÛֵΪ 22.
@@ -2448,9 +2455,6 @@ public int minDistance(String word1, String word2) {
 
 [Leetcode : 72. Edit Distance (Hard)](https://leetcode.com/problems/edit-distance/description/)
 
-**ÐÞ¸ÄÒ»¸ö×Ö·û´®Ê¹Ëü³ÉΪ»ØÎÄ×Ö·û´®**// TODO
-
-[³ÌÐòÔ±´úÂëÃæÊÔÖ¸ÄÏ-×Ö·û´®](#)
 
 ### ÆäËüÎÊÌâ
 
@@ -2851,12 +2855,6 @@ public int majorityElement(int[] nums) {
 }
 ```
 
-**Êý×éÖгöÏÖ´ÎÊý¶àÓÚ n / k µÄÔªËØ**
-
-[³ÌÐòÔ±´úÂëÃæÊÔÖ¸ÄÏ P343](#)
-
-Ñ¡ k - 1 ¸öºòÑ¡
-
 ### ÆäËü
 
 **ƽ·½Êý**
@@ -3428,14 +3426,6 @@ s1 
 
 ## Êý×éÓë¾ØÕó
 
-**¾ØÕóÐýת** // TODO
-
-[³ÌÐòÔ±ÃæÊÔ½ðµä P114](#)
-
-**Ö®×ÖÐÍ´òÓ¡** //TODO
-
-[³ÌÐòÔ±´úÂëÃæÊÔÖ¸ÄÏ P335](#)
-
 **°ÑÊý×éÖÐµÄ 0 ÒƵ½Ä©Î²**
 
 [Leetcode : 283. Move Zeroes (Easy)](https://leetcode.com/problems/move-zeroes/description/)
@@ -4919,10 +4909,6 @@ public int getSum(int a, int b) {
 }
 ```
 
-**ʵÏÖÕûÊý³Ë·¨**
-
-[³ÌÐòÔ±´úÂëÃæÊÔÖ¸ÄÏ P319](#)
-
 **×Ö·û´®Êý×é×î´ó³Ë»ý**
 
 [Leetcode : 318. Maximum Product of Word Lengths (Medium)](https://leetcode.com/problems/maximum-product-of-word-lengths/description/)
diff --git a/pics/1dc481cc-99f6-4fa8-8f68-fbd563995bf5.png b/pics/1dc481cc-99f6-4fa8-8f68-fbd563995bf5.png
new file mode 100644
index 00000000..4723269f
Binary files /dev/null and b/pics/1dc481cc-99f6-4fa8-8f68-fbd563995bf5.png differ