题解 | #查找两个字符串a,b中的最长公共子串#
查找两个字符串a,b中的最长公共子串
https://www.nowcoder.com/practice/181a1a71c7574266ad07f9739f791506
# 20240920
a = input()
b = input()
if len(a) > len(b):
a,b = b,a
ls = []
for i in range(0,len(a)):
for j in range(i+1,len(a)+1):
if a[i:j] in b:
ls.append(a[i:j])
ls.sort(key=lambda x:len(x),reverse=True)
print(ls[0])
