摘要:
洛谷3378 1 #include<cstdio> 2 #include<algorithm> 3 #define ls (cur<<1) 4 #define rs (cur<<1|1) 5 #define mid ((a[cur].l+a[cur].r)>>1) 6 #define len(x) 阅读全文
posted @ 2017-10-18 16:30
Driver_Lao
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摘要:
线段树区修区查,洛谷3372 1 #include<cstdio> 2 #include<algorithm> 3 #define ls (cur<<1) 4 #define rs (cur<<1|1) 5 #define mid ((a[cur].l+a[cur].r)>>1) 6 #define 阅读全文
posted @ 2017-10-18 15:32
Driver_Lao
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