Cod sursa(job #878949)

Utilizator Kira96Denis Mita Kira96 Data 14 februarie 2013 20:53:20
Problema Loto Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.08 kb
#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("loto.in");
ofstream g("loto.out");
int i1,i2,i3,i,n,v[110],t,S,poz,R;
struct el
{
    int p1,p2,p3,s;
}D[200010];
int cm(el A,el B)
{
    return A.s<B.s;
}
int cb(int k)
{
    int p=1,u=n,m=(p+u)/2;
    while(p<=u)
    {
        m=(p+u)/2;
        if(k>D[m].s)
        p=m+1;
        else
        if(k<D[m].s)
        u=m-1;
        else
        if(k==D[m].s)
        return m;
    }
    return 0;
}
void write()
{
    g<<v[D[i].p1]<<" "<<v[D[i].p2]<<" "<<v[D[i].p3]<<" "<<v[D[poz].p1]<<" "<<v[D[poz].p2]<<" "<<v[D[poz].p3];
}
int main ()
{
    f>>n>>S;
    for(i=1;i<=n;++i)
    f>>v[i];
    for(i1=1;i1<=n;++i1)
    for(i2=i1;i2<=n;++i2)
    for(i3=i2;i3<=n;++i3)
    {
        D[++t].s=v[i1]+v[i2]+v[i3];
        D[t].p1=i1;
        D[t].p2=i2;
        D[t].p3=i3;
    }
    sort(D+1,D+t+1,cm);
    n=t;
    for(i=1;i<=t;++i)
    {
        R=S-D[i].s;
        poz=cb(R);
        if(poz)
        {
        write(); return 0;
        }
    }
    g<<-1;
    return 0;
}