중복계산

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List<Group> _currentGroups =  SimulationManager.PageGroup.GetCurrentPage(); //PPAg               int[] indexes = _currentGroups.Select(x => x.itemIdx).ToArray();               GroupItem_Info[] groups = GroupContents.GetComponentsInChildren<GroupItem_Info>(); //UI               int[] uiIndexes = groups.Select(x => x.objIdx).ToArray();                   int[] intercept = indexes.Intersect(uiIndexes).ToArray(); //중복되는idx 찾기

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