POJ 1742 coins

Question: give several coins with different denominations and the corresponding number to see if each nominal value in 1-m can be obtained. Analysis: Obviously, there are multiple knapsack problems. It must be full. In addition, 1-m traversal and

Enter a binary tree, print each node of the tree from top to bottom, and print the tree from left to right in the same layer.

Question 16th:Question (Microsoft ):Enter a binary tree, print each node of the tree from top to bottom, and print the tree from left to right in the same layer.For example, enter 8/\6 10/\/\5 7 9 11 Output 8 6 10 5 7 9 11.   [Cpp] view

Find the k-th node at the bottom of the linked list

Path: with two pointers, p1 and p2, p1 first K-1 step, p2 points to the header node, and then the two go together, when p1 points to the end node, p2 points to the last k nodes. P1 took the K-1 step, pointing to the k node of the positive number,

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