摘要:
Pair: normal and paranormal #include<iostream> #include<cstdio> #include<algorithm> #include<vector> #include<queue> #include<cstring> #include<map> # 阅读全文
摘要:
D. Alternating Current #include<iostream> #include<cstdio> #include<algorithm> #include<vector> #include<queue> #include<cstring> #include<map> #inclu 阅读全文