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CyC2018 2018-03-19 10:54:28 +08:00
parent 7ea4706322
commit c1300e1d4d

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@ -87,8 +87,8 @@
- n 表示数组长度、字符串长度、树节点个数,以及其它具有一维性质的数据结构的元素个数;
- m, n 表示矩阵的行数和列数;
- first, last 表示闭区间:[first, last]
- l, h 也表示闭区间:[l, h]
- begin, end 表示左闭右开区间:[begin, end)
- l, h 表示二分查找的闭区间:[l, h]
- ret 表示结果相关的变量;
- dp 表示动态规划保存子问题的数组;
@ -548,17 +548,16 @@ private int minNumberInRotateArray(int[] nums, int first, int last) {
复杂度O(log<sub>n</sub>) + O(1)
```java
public int minNumberInRotateArray(int[] array) {
if (array.length == 0) return 0;
int l = 0, r = array.length - 1;
int mid = -1;
while (array[l] >= array[r]) {
if (r - l == 1) return array[r];
mid = l + (r - l) / 2;
if (array[mid] >= array[l]) l = mid;
else if (array[mid] <= array[r]) r = mid;
public int minNumberInRotateArray(int[] nums) {
if (nums.length == 0) return 0;
int l = 0, h = nums.length - 1;
while (nums[l] >= nums[h]) {
if (h - l == 1) return nums[h];
int mid = l + (h - l) / 2;
if (nums[mid] >= nums[l]) l = mid;
else if (nums[mid] <= nums[h]) h = mid;
}
return array[mid];
return nums[l];
}
```