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modulo calculator
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template <long long modulo> | |
class Modulo | |
{ | |
private: | |
long long pow(long long q) | |
{ | |
long long a=1; | |
long long y=x; | |
for(;q!=0;q>>=1) | |
{ | |
if(q&1LL)a=(a*y)%mod; | |
y=(y*y)%mod; | |
} | |
return a; | |
} | |
long long inv(){return pow(mod-2);} | |
public: | |
long long mod = modulo; | |
unsigned long long x; | |
Modulo() : x(0) {} | |
Modulo(signed s) {while(s<0)s+=mod;x=s%mod;} | |
Modulo(signed long long s) {while(s<0)s+=mod;x=s%mod;} | |
operator int(){return (int) x;} | |
operator long long(){return (long long) x;} | |
void operator++(){(*this)+=1;} | |
void operator--(){(*this)-=1;} | |
Modulo &operator+=(Modulo q){if((x+=q.x)>=mod)x-=mod; return *this;} | |
Modulo &operator-=(Modulo q){if((x+=mod-q.x)>=mod)x-=mod; return *this;} | |
Modulo &operator*=(Modulo q){x=(unsigned long long)x*q.x%mod; return *this;} | |
Modulo &operator/=(Modulo q){x=(unsigned long long)x*q.inv()%mod; return *this;} | |
Modulo operator+(Modulo q){return Modulo(*this)+=q;} | |
Modulo operator-(Modulo q){return Modulo(*this)-=q;} | |
Modulo operator*(Modulo q){return Modulo(*this)*=q;} | |
Modulo operator/(Modulo q){return Modulo(*this)/=q;} | |
template<typename T> Modulo &operator+=(const T q){if((x+=q)>=mod)x-=mod; return *this;} | |
template<typename T> Modulo &operator-=(const T q){if((x+=mod-q)>=mod)x-=mod; return *this;} | |
template<typename T> Modulo &operator*=(const T q){x=(unsigned long long)x*q%mod; return *this;} | |
template<typename T> Modulo &operator/=(const T q){x=(unsigned long long)x*(Modulo(q)).inv()%mod; return *this;} | |
template<typename T> Modulo operator+(const T q){return Modulo(*this)+=q;} | |
template<typename T> Modulo operator-(const T q){return Modulo(*this)-=q;} | |
template<typename T> Modulo operator*(const T q){return Modulo(*this)*=q;} | |
template<typename T> Modulo operator/(const T q){return Modulo(*this)/=q;} | |
template<typename T> Modulo power(const T q){return Modulo(pow((long long)q));} | |
}; |
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