* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
1.1 KiB
1.1 KiB
id, title, challengeType, videoUrl, dashedName
id | title | challengeType | videoUrl | dashedName |
---|---|---|---|---|
597f1e7fbc206f0e9ba95dc4 | 整数因子 | 5 | factors-of-an-integer |
--description--
编写一个返回正整数因子的函数。
这些因子是正整数,通过该正整数可以将被分解的数量除以产生正整数结果。
///--hints--
factors
是一种功能。
assert(typeof factors === 'function');
factors(45)
应该返回[1,3,5,9,15,45]
。
assert.deepEqual(factors(45), ans[0]);
factors(53)
应该返回[1,53]
。
assert.deepEqual(factors(53), ans[1]);
factors(64)
应该返回[1,2,4,8,16,32,64]
。
assert.deepEqual(factors(64), ans[2]);
--seed--
--after-user-code--
const ans=[[1,3,5,9,15,45],[1,53],[1,2,4,8,16,32,64]];
--seed-contents--
function factors(num) {
}
--solutions--
function factors(num)
{
let n_factors = [], i, sqr=Math.floor(Math.sqrt(num));
for (i = 1; i <=sqr ; i += 1)
if (num % i === 0)
{
n_factors.push(i);
if (num / i !== i)
n_factors.push(num / i);
}
n_factors.sort(function(a, b){return a - b;});
return n_factors;
}