58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
#include "fraction.h"
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fraction fraction::operator+(const fraction &frac) {
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fraction tmp = *this;
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tmp.numerator = tmp.numerator * frac.denominator +
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tmp.denominator * frac.numerator;
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tmp.denominator = tmp.denominator * frac.denominator;
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return tmp.simplify();
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}
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fraction fraction::operator*(const fraction &frac) {
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fraction tmp = *this;
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tmp.numerator = tmp.numerator * frac.numerator;
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tmp.denominator = tmp.denominator * frac.denominator;
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return tmp.simplify();
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}
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bool fraction::operator==(const fraction &frac) {
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this->simplify();
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return gcd(frac.numerator, this->numerator) == this->numerator &&
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gcd(frac.denominator, this->denominator) == this->denominator;
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}
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bool fraction::operator!=(const fraction &frac) {
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return !(*this == frac);
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}
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fraction &fraction::simplify() {
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int g = gcd(numerator, denominator);
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numerator /= g;
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denominator /= g;
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return *this;
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}
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float fraction::real() const {
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return static_cast<float>(numerator) / denominator;
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}
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int fraction::gcd(int a, int b) {
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if (a % b == 0)
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return b;
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return gcd(b, a % b);
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}
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fraction &fraction::operator=(const fraction &frac) {
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numerator = frac.numerator;
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denominator = frac.denominator;
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this->simplify();
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return *this;
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}
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fraction &fraction::operator*=(const fraction &frac) {
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numerator *= frac.numerator;
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denominator *= frac.denominator;
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return *this;
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}
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