Hi everyone! for now i was using this
#pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops") in my template ,howewer i got WA 2 times due to this pragmas.

i have heard that pragmas can cause TLE but i have never heard that this can cause WA. So can any one tell how pragmas really work and why it can cause WA?