chore: manual translations (#42811)
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@ -10,7 +10,7 @@ dashedName: harshad-or-niven-series
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The Harshad or Niven numbers are positive integers ≥ 1 that are divisible by the sum of their digits.
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For example, `42` is a [Harshad number](https://rosettacode.org/wiki/Harshad_or_Niven_series "Harshad or Niven series") as `42` is divisible by `(4 + 2)` without remainder.
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For example, `42` is a Harshad number as `42` is divisible by `(4 + 2)` without remainder.
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Assume that the series is defined as the numbers in increasing order.
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@ -18,7 +18,7 @@ Assume that the series is defined as the numbers in increasing order.
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Implement a function to generate successive members of the Harshad sequence.
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Use it to list the first twenty members of the sequence and list the first Harshad number greater than 1000.
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Use it to return an array with ten members of the sequence, starting with first Harshad number greater than `n`.
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# --hints--
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@ -28,32 +28,31 @@ Use it to list the first twenty members of the sequence and list the first Harsh
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assert(typeof isHarshadOrNiven === 'function');
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```
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`isHarshadOrNiven()` should return `{"firstTwenty": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42],"firstOver1000": 1002}`
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`isHarshadOrNiven(10)` should return `[12, 18, 20, 21, 24, 27, 30, 36, 40, 42]`
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```js
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assert.deepEqual(isHarshadOrNiven(), res);
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assert.deepEqual(isHarshadOrNiven(10), [12, 18, 20, 21, 24, 27, 30, 36, 40, 42]);
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```
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`isHarshadOrNiven(400)` should return `[402, 405, 407, 408, 410, 414, 420, 423, 432, 440]`
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```js
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assert.deepEqual(isHarshadOrNiven(400), [402, 405, 407, 408, 410, 414, 420, 423, 432, 440]);
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```
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`isHarshadOrNiven(1000)` should return `[1002, 1008, 1010, 1011, 1012, 1014, 1015, 1016, 1017, 1020]`
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```js
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assert.deepEqual(isHarshadOrNiven(1000), [1002, 1008, 1010, 1011, 1012, 1014, 1015, 1016, 1017, 1020]);
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```
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# --seed--
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## --after-user-code--
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```js
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const res = {
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firstTwenty: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42],
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firstOver1000: 1002
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};
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```
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## --seed-contents--
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```js
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function isHarshadOrNiven() {
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const res = {
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firstTwenty: [],
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firstOver1000: undefined
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};
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// Only change code below this line
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function isHarshadOrNiven(n) {
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const res = [];
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return res;
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}
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@ -62,37 +61,27 @@ function isHarshadOrNiven() {
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# --solutions--
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```js
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function isHarshadOrNiven() {
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const res = {
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firstTwenty: [],
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firstOver1000: undefined
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};
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function isHarshad(n) {
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function isHarshadOrNiven(n) {
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function isHarshad(num) {
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let s = 0;
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const nStr = n.toString();
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const nStr = num.toString();
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for (let i = 0; i < nStr.length; ++i) {
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s += parseInt(nStr.charAt(i), 10);
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}
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return n % s === 0;
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}
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const res = [];
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let count = 0;
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const harshads = [];
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for (let n = 1; count < 20; ++n) {
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while (count < 10) {
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n++;
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if (isHarshad(n)) {
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count++;
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harshads.push(n);
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res.push(n);
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}
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}
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res.firstTwenty = harshads;
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let h = 1000;
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while (!isHarshad(++h));
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res.firstOver1000 = h;
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return res;
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}
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```
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