Map printing problem stl

Question

0.00/5 (No votes)

See more:

i am new in stl....i was trying to get the output like below but gettig errors:

input: 1 2 3 4 4 5 66 66 7 10 10 2 8 4
output: 1 3 5 7 8

only the values of array which is just occured not more than once...thanks in advance

What I have tried:

C++

#include <iostream>
#include
using namespace std;

int main()
{


    map<int,int>mymap;
    for(int i=0;i<10;i++)
    {
        int p;
        cin>>p;
        mymap[p]++;
    }

    for(std::map<int>::iterator it=mymap.begin();it!=mymap.end();it++)

    {
        if(mymap[it]==1)
            cout<<it<<" ";
    }


    //cout << "Hello world!" << endl;
    return 0;
}

Posted 24-May-16 20:20pm

Member 12270086

Updated 24-May-16 20:53pm

CPallini

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Answer 1 · 2016-05-24T20:53:00

Try

C++

 #include <iostream>
 #include <map>
 using namespace std;

int main()
{
    map<int,int> mymap;
    for(int i=0;i<10;i++)
    {
        int p;
        cin >> p;
        if ( mymap.find(p) != mymap.end())
          ++mymap[p];
        else
          mymap[p] = 1;
    }
    for ( const auto & item : mymap)
    {
      if ( item.second == 1)
      cout << item.first << " ";
    }
    cout << endl;

    return 0;
}

[update]
If you have an outdated C++ compiler then try the following code:

C++

 #include <iostream>
 #include <map>
 using namespace std;

int main()
{
    map<int,int>mymap;
    for(int i=0;i<10;i++)
    {
        int p;
        cin >> p;
        if ( mymap.find(p) != mymap.end())
          ++mymap[p];
        else
          mymap[p] = 1;
    }
    for ( map<int,int>::iterator it = mymap.begin(); it != mymap.end(); ++it)
    {
      if ( it->second == 1)
      cout << it->first << " ";
    }
    cout << endl;

    return 0;
}

[/update]