add reverse word python solution
use str.split with no argument,separating with all white spaces
evaluate reverse polish notation
add O(NlogN) merge sort for singly linked list
remove debug  info
sortslist:fix bug,pointe p's previous pointer to q's previous pointer when merged two small lists
new file for unique permutation problem
add palindrome string,and anchor hashing max points solution
add Palindrome Partitioning solution
fix bug caused by incorrect indexing
partition palindrome:remove extra outter parenthesis
apply O(N) algorithm for Container With Most Water problem
add N-Queen problem solution
add max points problem solution
LRU cache algorithm,TLE error now
add max subarray solution
Best Time to Buy and Sell Stock II solution file
Slution for Best Time to Buy and Sell Stock II
new file for Best Time to Buy and Sell Stock III
fix bug,max subarray returns wrong begin index