How to implement the equivalence table in connected component labeling c++ Qt

[wassim24]

Sorry for not being clear

My question was : If i was to implement the equivalence table, which is a table containing all sets having a relation with other sets, what qt object should i use ?
Here is an example :
The label equivalence relationships generated are,

Set ID	Equivalent Labels
1         1,2
2	  1,2
3	  3,4,5,6,7
4	  3,4,5,6,7
5	  3,4,5,6,7
6	  3,4,5,6,7
7	  3,4,5,6,7

Set ID	Equivalent Labels
1         1,2
2	  1,2
3	  3,4,5,6,7
4	  3,4,5,6,7
5	  3,4,5,6,7
6	  3,4,5,6,7
7	  3,4,5,6,7

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Actually it is a part of a school project, i've made all the previous parts and i'm stuck just with annoying table :P

Thank your for your help !