摘要：
An intuitive 2D DP: dp[i][j] = min(grid[i-1][j-1] + dp[i-1][j], grid[i-1][j-1] + dp[i][j+1])class Solution {public: int minPathSum(vector > &grid) ... 阅读全文
posted @ 2014-08-03 07:30
Tonix
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Corner cases!class Solution {public: ListNode *deleteDuplicates(ListNode *head) { if (!head) return head; if (!head->next) return hea... 阅读全文
posted @ 2014-08-03 07:04
Tonix
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Nothing special. A typical list manipulation problem.class Solution {public: ListNode *partition(ListNode *head, int x) { if (!head) return ... 阅读全文
posted @ 2014-08-03 06:39
Tonix
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