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| -rw-r--r-- | js/algo/01_pe.js | 8 | ||||
| -rw-r--r-- | js/algo/02_pe.js | 9 |
2 files changed, 17 insertions, 0 deletions
diff --git a/js/algo/01_pe.js b/js/algo/01_pe.js new file mode 100644 index 0000000..634d20e --- /dev/null +++ b/js/algo/01_pe.js @@ -0,0 +1,8 @@ +// https://projecteuler.net/problem=1 + +// <p>If we list all the natural numbers below $10$ that are multiples of $3$ or $5$, we get $3, 5, 6$ and $9$. The sum of these multiples is $23$.</p> +// <p>Find the sum of all the multiples of $3$ or $5$ below $1000$.</p> + +const solution = Array.from({length: 1000}).reduce( + (p, n, i) => p + (i % 3 === 0 || i % 5 === 0 ? i : 0), 0 ) +console.log(solution) \ No newline at end of file diff --git a/js/algo/02_pe.js b/js/algo/02_pe.js new file mode 100644 index 0000000..51f91fd --- /dev/null +++ b/js/algo/02_pe.js @@ -0,0 +1,9 @@ +// https://projecteuler.net/problem=2 + +// <p>Each new term in the Fibonacci sequence is generated by adding the previous +// two terms. By starting with $1$ and $2$, the first $10$ terms will be: +// $$1, 2, 3, 5, 8, 13, 21, 34, 55, 89, \dots$$</p> +// <p>By considering the terms in the Fibonacci sequence whose values do not exceed +// four million, find the sum of the even-valued terms.</p> + + |