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Q1 :leetcode 216,Q2:739.Q3;513,Q4:733,Q5:77.Q6:39,Q7: 40Q8: 264 PQ解法Q:9 ...

Q1: 蓄水池算法pick 1Q2: reverse linked listQ3: reverse linked list per k node...

Q1: swipline calculate areaQ2: move negative to another sideQ3: shuffle ...

Q1: leetcode 617Q2: skyline algoQ3: vaild parthsisQ4:meeting roomQ5: hou...

Q1: CommonElemPathSumQ2: int[], max A[i] + A[j] + j - i, which j >= iQ3...

Q1: leetcode 771Q2: In the "100 game," two players take turns adding, to...

Q1: leetcode 653Q2: leetcode 252Q3: sorted, no dup, calculate how many p...

Q1:leetcode 622Q2:leetcode 259Q3:leetcode 15Q4:leetcode 18Q5:leetcode me...

Q1:root to target 距離Q2:檢查graph是treeQ3:count 2 sum 沒有重復元素Q4: count 2 sum,...