Cod sursa(job #932483)

Utilizator AeroHHorea Stefan AeroH Data 28 martie 2013 22:49:38
Problema Loto Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.06 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("loto.in");
ofstream g("loto.out");
int a,b,i,j,k,m,n,an,bn,cn,c[103],l,sol,e[1000003],x;
bool CautaBin(int x)
{
int st=1,dr=l,mij;
while(st<=dr)
{
    mij=(st+dr)/2;
    if(x==e[mij])return true;
      else
          if(x<e[mij])dr=mij-1;
             else st=mij+1;
}
return false;
}
int main()
{
    f>>a>>b;
    for (i=1;i<=a;i++)f>>c[i];
    for (i=1;i<=a;i++)
        for (j=i;j<=a;j++)
            for (k=j;k<=a;k++)
                e[++l]=c[i]+c[j]+c[k];
    sort(e+1,e+l+1);
for (i=1;i<=l;++i)
if(CautaBin(b-e[i]))
{sol=e[i];break;}

if (sol==0)g<<"-1\n";
else
{
    x=sol;
    for (i=1; i<=a; i++)
      for (j=1; j<=a; j++)
          for (k=1; k<=a; k++)
             if(x==c[i]+c[j]+c[k]){g<<c[i]<<" "<<c[j]<<" "<<c[k]<<" ";i+=a;j+=a;k+=a;}
    x=b-sol;
    for (i=1; i<=a; i++)
      for (j=1; j<=a; j++)
          for (k=1; k<=a; k++)
             if(x==c[i]+c[j]+c[k]){g<<c[i]<<" "<<c[j]<<" "<<c[k]<<" ";i+=a;j+=a;k+=a;}
    g<<'\n';
}
    return 0;
}