#pragma GCC optimize("Ofast") #pragma GCC target("sse3","sse2","sse") //#pragma GCC target("avx","sse4","sse4.1","sse4.2","ssse3") //#pragma GCC target("f16c") //#pragma GCC target("fma","avx2") //#pragma GCC target("xop","fma4") #pragma GCC optimize("inline","fast-math","unroll-loops","no-stack-protector") #pragma GCC diagnostic error "-fwhole-program" #pragma GCC diagnostic error "-fcse-skip-blocks" #pragma GCC diagnostic error "-funsafe-loop-optimizations" #pragma GCC diagnostic error "-std=c++14"
注释掉的几行是特殊指令集，要视评测机决定是否使用（都试一下，如果评测机不支持，但是开了，就会RE）
没注释掉的那行特殊指令集应该是比较普遍能用的
