Sukat

input/code.cpp:92:9: warning: "/*" within comment [-Wcomment]
   92 |         /*
      |

#include<bits/stdc++.h>
using namespace std;
using ll = long long;




int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);


    stack<char> x;

    char c;
    while(cin >> c){
        x.push(c);
    }

    unordered_map<char, int> m;
    while(x.size() > 0){
        m[x.top()]++;
        x.pop();
    }


    vector<pair<int, char>> v;
    for(auto u : m) v.push_back({u.second, u.first});
    sort(v.rbegin(), v.rend());

    //for(auto u : v) cout << u.first << " " << u.second << "\n";

    vector<string> w;

    while(true){

        //for(auto u : v) cout << u.first << " " << u.second << "\n";
        //cout << "\n\n";

        auto eka = v[0];
        auto toka = v[1];

        if(eka.first == 0 || toka.first == 0) break;

        //cout << eka.second << toka.second;
        string c = "";
        c += eka.second;
        c += toka.second;
        w.push_back(c);

        v[0] = {eka.first - 1, eka.second};
        v[1] = {toka.first - 1, toka.second};

        sort(v.rbegin(), v.rend());

    }

    cout << w.size() << "\n";
    for(string x : w) cout << x << "\n";


    /*

    set<pair<int, char>> s;
    for(auto u : m){
        s.insert({u.second, u.first});
    }

    for(auto u : s) cout << u.first << " " << u.second << "\n";

    vector<string> v;

    while(s.size() > 1){

        auto tokaeniten = --s.begin();
        auto eniten = tokaeniten--;

        cout << (eniten -> second) << (tokaeniten -> second);

        exit(0);






        //auto toka = s.begin();
        //auto eka = toka++;

        //v.push_back("" + (eka -> second) + toka -> second);
        //cout << (eniten -> second) << (tokaeniten -> second);

        /*
        if(eniten -> first > 1){
            // jää edelleen
            s.insert({eniten -> first - 1, eniten -> second});
        }
        s.erase(eniten);

        if(tokaeniten -> first > 1){
            // jää edelleen
            s.insert({tokaeniten -> first - 1, tokaeniten -> second});
        }
        s.erase(tokaeniten);
        */


       /*

    }

    cout << v.size() << "\n";
    for(string x : v) cout << x << "\n";

    */

    












    


}


/*

BBBCK

{määrä, kirjain}

1. sukka = Mitä kirjainta on jäljellä eniten
2. sukka = Muu kirjain, jota on jäljellä eniten

*/

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 2, 3

Verdict: ACCEPTED

Test 10

Group: 2, 3

Verdict: ACCEPTED

Test 11

Group: 2, 3

Verdict: ACCEPTED

Test 12

Group: 2, 3

Verdict: ACCEPTED

Test 13

Group: 2, 3

Verdict: ACCEPTED

Test 14

Group: 2, 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED

Test 16

Group: 3

Verdict: WRONG ANSWER

Test 17

Group: 3

Verdict: ACCEPTED

Test 18

Group: 3

Verdict: ACCEPTED

Test 19

Group: 3

Verdict: ACCEPTED

Test 20

Group: 3

Verdict: ACCEPTED

Test 21

Group: 3

Verdict: ACCEPTED