不应该预处理出所有素数，然后再维护前缀和，最后O(1)查询吗，你这样做不爆才怪
by wwlw @ 2019-01-30 09:55:50
@[mbbcc](/space/show?uid=104742) 建议重构代码QWQ
by wwlw @ 2019-01-30 09:58:58
pragma GCC diagnostic error "-std=c++11"
pragma GCC target("avx")
pragma GCC optimize(3)
pragma GCC optimize("Ofast")
pragma GCC optimize("inline")
pragma GCC optimize("-fgcse")
pragma GCC optimize("-fgcse-lm")
pragma GCC optimize("-fipa-sra")
pragma GCC optimize("-ftree-pre")
pragma GCC optimize("-ftree-vrp")
pragma GCC optimize("-fpeephole2")
pragma GCC optimize("-ffast-math")
pragma GCC optimize("-fsched-spec")
pragma GCC optimize("unroll-loops")
pragma GCC optimize("-falign-jumps")
pragma GCC optimize("-falign-loops")
pragma GCC optimize("-falign-labels")
pragma GCC optimize("-fdevirtualize")
pragma GCC optimize("-fcaller-saves")
pragma GCC optimize("-fcrossjumping")
pragma GCC optimize("-fthread-jumps")
pragma GCC optimize("-funroll-loops")
pragma GCC optimize("-fwhole-program")
pragma GCC optimize("-freorder-blocks")
pragma GCC optimize("-fschedule-insns")
pragma GCC optimize("inline-functions")
pragma GCC optimize("-ftree-tail-merge")
pragma GCC optimize("-fschedule-insns2")
pragma GCC optimize("-fstrict-aliasing")
pragma GCC optimize("-fstrict-overflow")
pragma GCC optimize("-falign-functions")
pragma GCC optimize("-fcse-skip-blocks")
pragma GCC optimize("-fcse-follow-jumps")
pragma GCC optimize("-fsched-interblock")
pragma GCC optimize("-fpartial-inlining")
pragma GCC optimize("no-stack-protector")
pragma GCC optimize("-freorder-functions")
pragma GCC optimize("-findirect-inlining")
pragma GCC optimize("-fhoist-adjacent-loads")
pragma GCC optimize("-frerun-cse-after-loop")
pragma GCC optimize("inline-small-functions")
pragma GCC optimize("-finline-small-functions")
pragma GCC optimize("-ftree-switch-conversion")
pragma GCC optimize("-foptimize-sibling-calls")
pragma GCC optimize("-fexpensive-optimizations")
pragma GCC optimize("-funsafe-loop-optimizations")
pragma GCC optimize("inline-functions-called-once")
pragma GCC optimize("-fdelete-null-pointer-checks")
pragma GCC optimize("Ofast,fast-math,unroll-loops")
试试这些加速头文件
by 灿若琉璃 @ 2019-01-30 10:12:25
谢大佬
by YmloveYs @ 2019-01-30 10:32:26