Need more explanation about what the ret function is doing?

#1

What will be the output of following C++ code?

#include <bits/stdc++.h>
using namespace std;
int main()
{
sets;
pair<set::iterator, bool> ret;
s.insert(1);
s.insert(5);
s.insert(10);
s.insert(3);
ret = s.insert(10);
cout<<ret.second<<endl;
return 0;
}

How is the answer 0?

#2

hi @deepak_four ret is not a function, its a value that is storing the value returned by the function insert. You can read more about the return type of insert function in the documentation, http://www.cplusplus.com/reference/set/set/insert/

#3

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