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- 2016-8-5
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- 1970-1-1
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补上这两天的
- 10/18
- 830E. Positions of Large Groups
- simple imple
- 472H. Concatenated Words
- Trie. Passed with Python2 not PYthon3 (TLE).
- 170E. Two Sum III - Data structure design
- simple OOD
- 730H. Count Different Palindromic Subsequences
- {DNF}. range DP
- 519M. Random Flip Matrix
- hash, mapping design
- {buggy}. interesting problem
- 668H. Kth Smallest Number in Multiplication Table
- heap. O(Q\*log(N)), since Q is large, it will cause TLE.
- binsearch. O(log(Q)\*N). passed
- 10/17
- 517. Super Washing Machines
- {buggy}. debt counting
- can be simpler
- Google OA 2
- Google OA 1
- 630. Course Schedule III
- heap+greedy |
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