题解 2821: 开关灯

解题思路:

注意事项:

参考代码:

n,m=map(int,input().strip().split())

l = [0 for i in range(n)]

for i in range(2,m+1,1):  # 人

    for j in range(2,n+1,1):  # 灯

        if j % i == 0:

            l[j-1] += 1

t = []

for i in range(n):

    if(l[i]%2 == 0):

        t.append(i+1)

print(",".join(str(i) for i in t))