有一排香蕉，每个香蕉有不同的甜度值。小猴子想吃香蕉，但不能吃相邻的香蕉。以下代码能找到小猴子吃到甜甜的香蕉组合。

def find_selected_bananas(bananas, dp):
    selected = []
    i = len(bananas) - 1
    while i >= 0:
        if i == 0:
            selected.append(0)
            break
        if dp[i] == dp[i-1]:
            i -= 1
        else:
            selected.append(i)
            i -= 2
    selected.reverse()
    print("小猴子吃了第", end="")
    for idx in selected:
        print(idx + 1, end=" ")
    print("个香蕉")

def main():
    bananas = [1, 2, 3, 1] # 每个香蕉的甜度
    if not bananas:
        return
    n = len(bananas)
    dp = [0] * n
    dp[0] = bananas[0]
    if n > 1:
        dp[1] = max(bananas[0], bananas[1])
    for i in range(2, n):
        dp[i] = max(bananas[i] + dp[i-2], dp[i-1])
    find_selected_bananas(bananas, dp)