| 3 | private val size = IntArray(size) { 1 } |
| 4 | |
| 5 | fun union(x: Int, y: Int): Boolean { |
| 6 | var repX = find(x) |
| 7 | var repY = find(y) |
| 8 | if (repX != repY) { |
| 9 | if (size[repX] > size[repY]) { |
| 10 | parent[repY] = repX |
| 11 | size[repX] += size[repY] |
| 12 | } else { |
| 13 | parent[repX] = repY |
| 14 | size[repY] += size[repX] |
| 15 | } |
| 16 | // Return true if both groups were merged. |
| 17 | return true |
| 18 | } |
| 19 | // Return false if the points belong to the same group. |
| 20 | return false |
| 21 | } |
| 22 | |
| 23 | fun find(x: Int): Int { |
| 24 | if (x == parent[x]) { |