题解 | #数据分类处理#
数据分类处理
https://www.nowcoder.com/practice/9a763ed59c7243bd8ab706b2da52b7fd
I = input().split()
R = input().split()
Icount = int(I[0])
Rcount = int(R[0])
I.pop(0)
R.pop(0)
Rr = list(map(str, sorted(list(set(list(map(int, R)))))))
temp = []
result = []
countList = []
count = 0
for i in Rr:
for j, v in enumerate(I):
if i in v:
temp.append(str(j))
temp.append(v)
count += 1
if count != 0:
temp.insert(0, str(count))
temp.insert(0, i)
count = 0
result.append(temp)
temp = []
num = 0
for n in result:
num = num + int(n[1])
num = (num + len(result)) * 2
print(num, end=" ")
for s in result:
print(" ".join(s), end=" ")
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