ee1e8abd87
* 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>
1.2 KiB
1.2 KiB
id, title, challengeType, forumTopicId, dashedName
| id | title | challengeType | forumTopicId | dashedName |
|---|---|---|---|---|
| a3566b1109230028080c9345 | Sum All Numbers in a Range | 5 | 16083 | sum-all-numbers-in-a-range |
--description--
We'll pass you an array of two numbers. Return the sum of those two numbers plus the sum of all the numbers between them. The lowest number will not always come first.
For example, sumAll([4,1]) should return 10 because sum of all the numbers between 1 and 4 (both inclusive) is 10.
--hints--
sumAll([1, 4]) should return a number.
assert(typeof sumAll([1, 4]) === 'number');
sumAll([1, 4]) should return 10.
assert.deepEqual(sumAll([1, 4]), 10);
sumAll([4, 1]) should return 10.
assert.deepEqual(sumAll([4, 1]), 10);
sumAll([5, 10]) should return 45.
assert.deepEqual(sumAll([5, 10]), 45);
sumAll([10, 5]) should return 45.
assert.deepEqual(sumAll([10, 5]), 45);
--seed--
--seed-contents--
function sumAll(arr) {
return 1;
}
sumAll([1, 4]);
--solutions--
function sumAll(arr) {
var sum = 0;
arr.sort(function(a,b) {return a-b;});
for (var i = arr[0]; i <= arr[1]; i++) {
sum += i;
}
return sum;
}