Method findRootParent

RedundantConnection.java:29–35

(int node)

    }

    public int findRootParent(int node){
        if(node == parent[node]){
            return node;
        }
        parent[node] = findRootParent(parent[node]);
        return parent[node];
    }
    public boolean unionBySize(int node1, int node2){
        //1. find the root parent
        int rootParent1 = findRootParent(node1);