1.2 KiB
1.2 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5a23c84252665b21eecc8042 | Sum of squares | 1 | 302334 | sum-of-squares |
--description--
Write a function to find the sum of squares of an array of integers.
--hints--
sumsq
should be a function.
assert(typeof sumsq == 'function');
sumsq([1, 2, 3, 4, 5])
should return a number.
assert(typeof sumsq([1, 2, 3, 4, 5]) == 'number');
sumsq([1, 2, 3, 4, 5])
should return 55
.
assert.equal(sumsq([1, 2, 3, 4, 5]), 55);
sumsq([25, 32, 12, 7, 20])
should return 2242
.
assert.equal(sumsq([25, 32, 12, 7, 20]), 2242);
sumsq([38, 45, 35, 8, 13])
should return 4927
.
assert.equal(sumsq([38, 45, 35, 8, 13]), 4927);
sumsq([43, 36, 20, 34, 24])
should return 5277
.
assert.equal(sumsq([43, 36, 20, 34, 24]), 5277);
sumsq([12, 33, 26, 18, 1, 16, 3])
should return 2499
.
assert.equal(sumsq([12, 33, 26, 18, 1, 16, 3]), 2499);
--seed--
--seed-contents--
function sumsq(array) {
}
--solutions--
function sumsq(array) {
var sum = 0;
var i, iLen;
for (i = 0, iLen = array.length; i < iLen; i++) {
sum += array[i] * array[i];
}
return sum;
}