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Update include.hh

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Ariel 2024-02-18 14:46:04 +08:00 committed by GitHub
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include.hh
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@ -35,6 +35,10 @@ constexpr ull PRIME = 998'244'353;
constexpr ll MDL1 = 825;
constexpr ll MDL2 = PRIME;
/* random */
mt19937 rd(chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count());
/* bit-wise operations */
#define lowbit(x) ((x) & -(x))
#define popcount(x) (__builtin_popcountll(ll(x)))