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fix(learn): rework Rosetta Code Count the Coins (#41282)

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* fix: rework challenge to use argument in function

* fix: use better wording

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
This commit is contained in:
gikf
2021-03-09 15:34:10 +01:00
committed by GitHub
parent 77730ae209
commit bd02249a23
1 changed files with 19 additions and 8 deletions
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27
curriculum/challenges/english/10-coding-interview-prep/rosetta-code/count-the-coins.md
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@ -30,7 +30,7 @@ There are four types of common coins in [US](https://en.wikipedia.org/wiki/Unite
# --instructions-- # --instructions--
Implement a function to determine how many ways there are to make change for a dollar using these common coins (1 dollar = 100 cents) Implement a function to determine how many ways there are to make change for a given input, `cents`, that represents an amount of US pennies using these common coins.
# --hints-- # --hints--
@ -40,10 +40,22 @@ Implement a function to determine how many ways there are to make change for a d
assert(typeof countCoins === 'function'); assert(typeof countCoins === 'function');
``` ```
`countCoins()` should return 242. `countCoins(15)` should return `6`.
```js ```js
assert.equal(countCoins(), 242); assert.equal(countCoins(15), 6);
```
`countCoins(85)` shouls return `163`.
```js
assert.equal(countCoins(85), 163);
```
`countCoins(100)` should return `242`.
```js
assert.equal(countCoins(100), 242);
``` ```
# --seed-- # --seed--
@ -51,7 +63,7 @@ assert.equal(countCoins(), 242);
## --seed-contents-- ## --seed-contents--
```js ```js
function countCoins() { function countCoins(cents) {
return true; return true;
} }
@ -60,12 +72,11 @@ function countCoins() {
# --solutions-- # --solutions--
```js ```js
function countCoins() { function countCoins(cents) {
let t = 100;
const operands = [1, 5, 10, 25]; const operands = [1, 5, 10, 25];
const targetsLength = t + 1; const targetsLength = cents + 1;
const operandsLength = operands.length; const operandsLength = operands.length;
t = [1]; const t = [1];
for (let a = 0; a < operandsLength; a++) { for (let a = 0; a < operandsLength; a++) {
for (let b = 1; b < targetsLength; b++) { for (let b = 1; b < targetsLength; b++) {