What is the problem with my code?

#1
#2

@tusharnitharwal
In line 7
Do vector<vector> &v

If your doubt is resolved please mark it as closed.

#3

Yes it worked. But what was the problem?

#4

Now this code doesnt reduce duplicates even after using unique function https://ide.codingblocks.com/s/196183

#5

@tusharnitharwal
You didn’t use unique correctly https://www.geeksforgeeks.org/stdunique-in-cpp/
Use sort(v.begin(),v.end());
before v.erase(unique(v.begin(),v.end()),v.end());

#6

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