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Rozwiązania

Zadanie 1

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from math import gcd

with open("ulamki.txt", "r") as file:
    fractions = [list(map(int, str.split(" "))) for str in file.read().split("\n")]
    with open("skrocone.txt", "w") as out_file:
        for fraction in fractions:
            divisor = gcd(fraction[0], fraction[1])
            fraction[0] //= divisor
            fraction[1] //= divisor
            print(f"{fraction[0]} {fraction[1]}", file=out_file)

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#include <iostream>
#include <fstream>
#include <vector>
#include <sstream>
#include <numeric> // For std::gcd

using namespace std;

int main() {
    ifstream file("ulamki.txt");
    ofstream out_file("skrocone.txt");

    int numerator, denumerator;

    while (file >> numerator >> denumerator && !file.eof()) {
        int divisor = gcd(numerator, denumerator);
        numerator /= divisor;
        denumerator /= divisor;
        out_file << numerator << " " << denumerator << endl;
    }

    file.close();
    out_file.close();

    return 0;
}

Zadanie 2

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from math import gcd

with open("ulamki.txt", "r") as file:
    fractions = [list(map(int, str.split(" "))) for str in file.read().split("\n")]
    numerator = fractions[0][0]
    denumerator = fractions[0][1]
    fractions.pop(0)
    for fraction in fractions:
        m1 = denumerator
        m2 = fraction[1]
        numerator *= m2
        denumerator *= m2
        numerator += fraction[0] * m1

    divisor = gcd(numerator, denumerator)
    numerator //= divisor
    denumerator //= divisor
    print(numerator, denumerator)

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#include <iostream>
#include <fstream>
#include <vector>
#include <sstream>
#include <numeric> // For std::gcd

using namespace std;

int main() {
    ifstream file("ulamki.txt");

    int numerator, denumerator, num, den;
    file >> numerator >> denumerator;

    while (file >> num >> den && !file.eof()) {
        int tmp = denumerator;
        numerator *= den;
        denumerator *= den;
        numerator += num * tmp;
    }

    file.close();

    int divisor = gcd(numerator, denumerator);
    numerator /= divisor;
    denumerator /= divisor;

    cout << numerator << " " << denumerator << endl;

    return 0;
}

Zadanie 3

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from math import gcd

with open("ulamki.txt", "r") as file:
    fractions = [list(map(int, str.split(" "))) for str in file.read().split("\n")]
    numerator = fractions[0][0]
    denumerator = fractions[0][1]
    fractions.pop(0)
    for fraction in fractions:
        numerator *= fraction[0]
        denumerator *= fraction[1]

    divisor = gcd(numerator, denumerator)
    numerator //= divisor
    denumerator //= divisor
    print(numerator, denumerator)

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#include <iostream>
#include <fstream>
#include <vector>
#include <sstream>
#include <numeric> // For std::gcd

using namespace std;

int main() {
    ifstream file("ulamki.txt");

    int numerator, denumerator, num, den;
    file >> numerator >> denumerator;

    while (file >> num >> den && !file.eof()) {
        numerator *= num;
        denumerator *= den;
    }

    file.close();

    int divisor = gcd(numerator, denumerator);
    numerator /= divisor;
    denumerator /= divisor;

    cout << numerator << " " << denumerator << endl;

    return 0;
}