153. 寻找旋转排序数组中的最小值

    public int findMin(int[] nums) {
        if (nums.length == 1) {
            return nums[0];
        }
        int left = 0, right = nums.length - 1;
        if (nums[0] < nums[right]) {
            return nums[0];
        }
        while (left <= right) {
            int mid = left + (right - left) / 2;
            if (nums[mid] > nums[mid + 1]) {
                return nums[mid + 1];
            }
            if (nums[mid - 1] > nums[mid]) {
                return nums[mid];
            }
            if (nums[mid] > nums[0]) {
                left = mid + 1;
            } else {
                right = mid;
            }
        }
        return -1;
    }