摘要: #define lc u<<1 #define rc u<<1|1 const int N = 1e5 + 5; i64 w[N], n, m, p; struct Tree { //线段树 i64 l, r, sum, add, mul; } tr[N * 4]; void cal_lazy(i6 阅读全文
posted @ 2024-05-12 02:11 Ke_scholar 阅读(22) 评论(1) 推荐(0) 编辑