chapter_stack_and_queue/exercises/

[giscus[bot]]

chapter_stack_and_queue/exercises/

动画图解、一键运行的数据结构与算法教程

https://www.hello-algo.com/chapter_stack_and_queue/exercises/

[RockyTL]

def isValid(s):
    if len(s) % 2 != 0:
        return False
    st = []
    mp = {')':'(', ']':'[', '}':'{'}
    for c in s:
        if c not in mp:
            st.append(c)
        elif not st or st.pop() != mp[c]:
            return False
    return not st

[26LIYUE]

还没学哈希表诶。但也能写