Cod sursa(job #2789262)

Utilizator chiriacandrei25Chiriac Andrei chiriacandrei25 Data 27 octombrie 2021 11:41:30
Problema Loto Scor 75
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.38 kb
#include <fstream>
#include <algorithm>
#include <map>

using namespace std;

ifstream cin("loto.in");
ofstream cout("loto.out");

int   n,sum;
int   v[101];

struct grup3
{
    int nr1;
    int nr2;
    int nr3;
};

multimap<int,grup3> grupuri;
multimap<int,grup3>::iterator it,itSearch;

int main()
{
    cin>>n>>sum;
    for(int i =0 ; i < n ; i++)
        cin>>v[i];

    sort(v,v+n);

    /// generate all 3 number combinations
    grup3 gr;
    for(int i = 0 ; i < n;i++)
    {
        for(int j = i ; j < n ;j++   )
        {
            for(int k = j; k < n ;k++)
            {
                gr.nr1 = v[i];
                gr.nr2 = v[j];
                gr.nr3 = v[k];
                if (gr.nr1 + gr.nr2 + gr.nr3 < sum)
                    grupuri.insert({gr.nr1 + gr.nr2 + gr.nr3,gr});
                else
                    break;
            }
        }
    }

    for(it = grupuri.begin(); it != grupuri.end();it++)
    {
        int sumaGrup = it->first;
        itSearch     = grupuri.find(sum-sumaGrup);

        if(itSearch != grupuri.end())
        {
            cout << it->second.nr1 << " "<< it->second.nr2 << " "<< it->second.nr3 << " ";
            cout << itSearch->second.nr1 << " "<< itSearch->second.nr2 << " "<< itSearch->second.nr3 ;

            return 0;
        }
    }

    cout << "-1";
    return 0 ;

}