Class V

cpp/main.cpp:36–45

#include <immintrin.h>

struct V
{
    __m256i v;
    FORCE_INLINE V() {}
    FORCE_INLINE V(const __m256i &v): v(v) {}
    FORCE_INLINE V(uint64_t v0, uint64_t v1, uint64_t v2, uint64_t v3)
    {
        v = _mm256_set_epi64x(v3, v2, v1, v0);
    }
};

FORCE_INLINE V operator ^ (const V &a, const V &b)
{