每一轮的 best 是什么

数组 [17, 24, 15, 13, 23]，把每一轮结束时的 best 都打出来：

A = [17, 24, 15, 13, 23]
NEG = [-17, -24, -15, -13, -23]

def find_max(a):
    best = a[0]
    for i in range(len(a)):
        if a[i] > best:
            best = a[i]
    return best

best = A[0]
out = []
for i in range(len(A)):
    if A[i] > best:
        best = A[i]
    out.append(best)
print("/".join(str(x) for x in out))