Codility: Triangle Solution

Lesson 6 Sorting
1function solution(A) {
2 if (A.length < 3) {
3 return 0
4 }
5
6 function isTriangle(a, b, c) {
7 return (a > 0) & (b > 0) & (c > 0) && a + b > c && a + c > b && b + c > a
8 }
9
10 A.sort((a, b) => a - b)
11
12 let count = 0
13 for (let i = 0; i < A.length - 2; i++) {
14 if (!isTriangle(A[i], A[i + 1], A[i + 2])) {
15 count++
16 }
17 }
18
19 return count === A.length - 2 ? 0 : 1
20}

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