#pragma GCC optimize("Ofast") #pragma GCC optimization("unroll-loops, no-stack-protector") #pragma GCC target("avx,avx2,fma") code example
Example: #pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops")
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")