lavos/cap3/ex37.go

package cap3

func Ex37(n int) []int {
	var coeff func(nums []int, n int)
	coeff = func(nums []int, n int) {
		if n <= 0 {
			return
		}

		// 第一个和最后一个数字肯定是1
		nums[0] = 1
		coeff(nums, n-1)
		nums[n] = 1

		for i := n - 1; i > 0; i-- {
			nums[i] += nums[i-1]
		}
	}

	nums := make([]int, n+1)
	coeff(nums, n)

	return nums
}