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tripplets sum
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| // Time complexity: O(n^2) | |
| function findTriplets(arr, n) { | |
| arr.sort(); | |
| var l = arr.length; | |
| for (var i = 0; i < l; i++) { | |
| var j = i + 1, | |
| k = l - 1; | |
| while (j < k) { | |
| if (arr[i] + arr[j] + arr[k] < n) { | |
| j++; | |
| } else if (arr[i] + arr[j] + arr[k] > n) { | |
| k--; | |
| } else { | |
| console.log(arr[i] + "," + arr[j] + "," + arr[k]); | |
| j++; | |
| k--; | |
| } | |
| } | |
| } | |
| return true; | |
| } | |
| var arr = [-1, -4, -9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; | |
| findTriplets(arr, 0); | |
| //http://geniuscarrier.com/finding-all-unique-triplets-that-sums-to-zero-javascript/ |
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