Jump Game II -> use greedy algo

to calculate the futhest position we could be in next step
jdafk
best time to buy and sell stock III
Permutation Sequence
Recently solved problems
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remember java passes pointer by value
Merge branch 'master' of github.com:cycoding/Leetcode
Be careful of dead loop
Consider two exit program conditions
use stack to store results and numbers
Avoid useless dfs to avoid TLE
the problem is reduced to finding longset repeated characters
a typical DP problem
good way to reduce time compelxity as the stock III question
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new problems solved
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Update LRUCache.java
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