I want to perform this kind of operation using a set:

set<int> s;
for (int i=0;i<n-1;i  ){
    for(int j=i 1;j<n;j  ){
        cout << s[j];
    }
}

CodePudding user response：

Oh, Are you looking for this.

What you want to achieve is can be done with the help of C Iterators.

set<int> st = {4, 3, 5, 6};
set<int>::iterator it1, it2;
for (it1 = st.begin(); it1 != st.end();) {
    for (it2 = it1  ; it2 != st.end(); it2  ) {
        cout << (*it2) << space;
    }
    cout << endl;
}

Output

3 4 5 6 
4 5 6 
5 6 
6 

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