#include "num.h"
#include <cstdint>
#include <iostream>
Num::Num(int value, int modulo) {
if (modulo == 0) {
this->value = value;
} else {
this->value = value % modulo;
}
this->modulo = modulo;
}
Num Num::operator*(int num) {
int64_t answer = value;
answer = (answer * num) % static_cast<int64_t>(modulo);
return {static_cast<int>(answer), this->modulo};
}
Num &Num::operator*=(int num) {
int64_t answer = value;
answer = (answer * num) % static_cast<int64_t>(modulo);
this->value = static_cast<int>(answer);
return *this;
}
Num Num::operator+(int num) {
int64_t answer = static_cast<int64_t>(value) + static_cast<int64_t>(num);
if (modulo != 0)
answer %= static_cast<int64_t>(modulo);
return {static_cast<int>(answer), this->modulo};
}
Num &Num::operator+=(int num) {
int64_t answer = static_cast<int64_t>(value) + static_cast<int64_t>(num);
if (modulo != 0)
answer %= static_cast<int64_t>(modulo);
this->value = static_cast<int>(answer);
return *this;
}
Num Num::operator-(int num) {
int64_t answer = static_cast<int64_t>(value) - static_cast<int64_t>(num);
if (modulo != 0) {
answer %= static_cast<int64_t>(modulo);
}
return {static_cast<int>(answer), this->modulo};
}
Num &Num::operator-=(int num) {
int64_t answer = static_cast<int64_t>(value) - static_cast<int64_t>(num);
if (answer < 0) {
answer += (answer / static_cast<int64_t>(modulo) + 1)
* static_cast<int64_t>(modulo);
}
if (modulo != 0) {
answer %= static_cast<int64_t>(modulo);
}
this->value = static_cast<int>(answer);
return *this;
}
Num &Num::operator=(const Num &other) {
this->value = other.value;
this->modulo = other.modulo;
return *this;
}
Num Num::operator-(const Num &other) {
return *this - other.value;
}
Num Num::operator+(const Num &other) {
return *this + other.value;
}
Num Num::operator*(const Num &other) {
return *this * other.value;
}
Num &Num::operator+=(const Num &other) {
*this += other.value;
return *this;
}
Num &Num::operator*=(const Num &other) {
*this *= other.value;
return *this;
}
Num &Num::operator-=(const Num &other) {
*this -= other.value;
return *this;
}