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During tea-drinking, princess, amongst other things, asked why has such a good-natured and cute Dragon imprisoned Lpl in the Castle? Dragon smiled eni 阅读全文
posted @ 2019-07-24 22:28
晴天要下雨
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摘要:
///支持查询和区间的单值修改 #include using namespace std; const int N=1e6+10; int n,a[N],m; int sumv[N>1; build(o>1; if(q>1; if(qlmid)ans+=querysum(o using namespace std; const int N=1e6+10; int n,a... 阅读全文
posted @ 2019-07-24 14:43
晴天要下雨
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