分班
分班
标题：分班 | 时间限制：1秒 | 内存限制：262144K | 语言限制：不限
幼儿园两个班的小朋友在排队时混在了一起，每位小朋友都知道自己是否与前面一位小朋友是否同班，请你帮忙把同班的小朋友找出来。
小朋友的编号为整数，与前一位小朋友同班用Y表示，不同班用N表示。
def judge(child_num):
if child_num <= 0&nbs***bsp;child_num > 999:
return False
return True
while True:
try:
children = input().split()
if len(children) == 0:
print("ERROR")
continue
class_1, class_2 = list(),list()
flag = True
for child in children:
if child == children[0]:
child_num = int(child.split("/")[0])
if not judge(child_num):
print("ERROR")
break
class_1.append(child_num)
else:
chlid_num,chlid_sign = int(child.split("/")[0]),child.split("/")[1]
if not judge(chlid_num):
print("ERROR")
break
if chlid_sign == "N":
flag = not flag
if flag:
class_1.append(chlid_num)
else:
class_2.append(chlid_num)
class_1.sort()
class_2.sort()
if class_1 == []&nbs***bsp;class_2 == []:
class_list =class_1+class_2
print(" ".join([str(i) for i in class_list]))
continue
if class_1[0] <= class_2[0]:
print(" ".join([str(x) for x in class_1]))
print(" ".join([str(x) for x in class_2]))
else:
print(" ".join([str(x)for x in class_2]))
print(" ".join([str(x) for x in class_1]))
except:
break
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