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// @Title: 得分最高的最小轮调 (Smallest Rotation with Highest Score)
// @Author: 15816537946@163.com
// @Date: 2022-03-09 17:46:47
// @Runtime: 108 ms
// @Memory: 9.2 MB
func bestRotation(nums []int) int {
    n := len(nums)
    diffs := make([]int, n)
    for i, num := range nums {
        low := (i + 1) % n
        high := (i - num + n + 1) % n
        diffs[low]++
        diffs[high]--
        if low >= high {
            diffs[0]++
        }
    }
    score, maxScore, idx := 0, 0, 0
    for i, diff := range diffs {
        score += diff
        if score > maxScore {
            maxScore, idx = score, i
        }
    }
    return idx
}