#include "num.h"
#include <iostream>

Num::Num(int value, int modulo) {
	if (modulo != 0)  this->value = value % modulo;
	else this->value = value;
	this->modulo = modulo;
}

Num& Num::operator=(const Num& other) {
	this->value = other.value;
	this->modulo = other.modulo;
	return *this;
}

Num Num::operator+(const Num & other) {
	Num obj((this->value + other.value) % this->modulo, this->modulo);
	return obj;
}

Num Num::operator-(const Num & other) {
	Num obj((this->value - other.value) % this->modulo, this->modulo);
	return obj;
}

Num Num::operator*(const Num & other) {
	Num obj((this->value * other.value) % this->modulo, this->modulo);
	return obj;
}

Num Num::operator+(int num) {
	this->value += num;
	this->value %= this->modulo;
	return *this;
}

Num Num::operator-(int num) {
	this->value -= num;
	this->value %= this->modulo;
	return *this;
}

Num Num::operator*(int num) {
	this->value *= num;
	this->value %= this->modulo;
	return *this;
}

Num& Num::operator+=(const Num & other) {
	this->modulo = modulo;
	this->value += other.value;
	this->value %= this->modulo;
	return *this;
}

Num& Num::operator-=(const Num & other) {
	this->modulo = modulo;
	this->value -= other.value;
	this->value %= this->modulo;
	if (this->value < 0) {
		this->value = this->modulo + this->value;
	}
	return *this;
}

Num& Num::operator*=(const Num & other) {
	this->value = ((int64_t)this->value * other.value) % modulo;
	this->modulo = modulo;
	this->value %= this->modulo;
	return *this;
}
Num& Num::operator+=(int num) {
	this->value = ((int64_t)this->value + num) % this->modulo;
	return *this;
}

Num& Num::operator-=(int num) {
	this->value -= num;
	this->value %= this->modulo;
	if (this->value < 0) 
		this->value = this->modulo + this->value;
	return *this;
}

Num& Num::operator*=(int num) {
	this->value = ((int64_t)this->value * num) % this->modulo;
	return *this;
}