Return value of insert in sets

#1

#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;
}

Can you explain how “pair<set::iterator, bool> ret;” this line works?

#2

@sivaganeshdaggubati hii see this code gives an error you cant declares set like this first and tell me what are you going to do

#3

This is the question asked in stl quiz,putting declaration part ahead can you expalin these lines “pair<set::iterator, bool> ret;”,ret = s.insert(10);
cout<<ret.second<<endl;

#4

@sivaganeshdaggubati can u give me ss of this question ??

#5

IMG_20220113_003853
IMG_20220113_003853578×560 51.5 KB

#6

@sivaganeshdaggubati
your code which u give shows that insert fun in the set returns a pair which contains set:iterator and the value bool. The insert function is used to add new elements in set. We just depicted that the return value of set is a pair of set:iterator pointing to the element and value of element which we just insert

#7

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