math.sublime-snippet

<snippet>
	<content><![CDATA[
const long long MOD = 998244353;

inline long long add(long long a, long long b) {
  a += b;
  if (a >= MOD) a -= MOD;
  return a;
}

inline long long sub(long long a, long long b) {
  a -= b;
  if (a < 0) a += MOD;
  return a;
}

inline long long mul(long long a) {
  return a;
}

template<typename... T>
inline long long mul(long long a, T... b) {
  return (long long) ((long long) a * mul(b...) % MOD);
}

inline long long power(long long a, long long b) {
  long long res = 1;
  while (b) {
    if (b & 1) {
      res = mul(res, a);
    }
    a = mul(a, a);
    b >>= 1;
  }
  return res;
}

inline long long inv(long long a) {
  a %= MOD;
  if (a < 0) a += MOD;
  long long b = MOD, u = 0, v = 1;
  while (a) {
    long long t = b / a;
    b -= t * a; swap(a, b);
    u -= t * v; swap(u, v);
  }
  assert(b == 1);
  if (u < 0) u += MOD;
  return u;
}

]]></content>
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</snippet>