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gkucmierz/dziadek_i_babcia_zagadka.js

Created April 26, 2023 18:25
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  1. gkucmierz created this gist Apr 26, 2023.
    22 changes: 22 additions & 0 deletions dziadek_i_babcia_zagadka.js
    View file
    Original file line number Diff line number Diff line change
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    // https://youtu.be/HDre_o2qz1o?t=238

    // Dziadek i babcia mają razem 126 lat, a dziadek ma dwa razy tyle,
    // ile babcia miała wtedy kiedy dziadek miał tyle ile babcia ma obecnie.
    // Ile lat ma babcia?

    const test = (x, diff) => {
    const bago = x;
    const d = bago * 2;
    const b = bago + diff;
    const dago = b;
    return dago + diff === d ? [d, b, d + b] : [];
    };

    for (let i = 0; i < 100; ++i) {
    for (let j = 0; j < 100; ++j) {
    const [d, b, res] = test(i, j);
    if (res === 126) {
    console.log(d, b, res);
    }
    }
    }