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摘要: #include <bits/stdc++.h> #define MEM(a,x) memset(a,x,sizeof(a)) #define W(a) while(a) #define gcd(a,b) __gcd(a,b) #define pi acos(-1.0) #define PII pa 阅读全文
posted @ 2021-10-14 17:13 BeautifulWater 阅读(241) 评论(0) 推荐(0) 编辑