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Update 0213.打家劫舍II.md
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@ -98,7 +98,28 @@ public:
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Java:
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```Java
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class Solution {
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public int rob(int[] nums) {
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if (nums == null || nums.length == 0)
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return 0;
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int len = nums.length;
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if (len == 1)
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return nums[0];
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return Math.max(robAction(nums, 0, len - 1), robAction(nums, 1, len));
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}
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int robAction(int[] nums, int start, int end) {
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int x = 0, y = 0, z = 0;
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for (int i = start; i < end; i++) {
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y = z;
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z = Math.max(y, x + nums[i]);
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x = y;
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}
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return z;
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}
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}
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```
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Python:
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