Cod sursa(job #2378731)

Utilizator petrisorvmyVamanu Petru Gabriel petrisorvmy Data 12 martie 2019 16:19:36
Problema Loto Scor 30
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.75 kb
#include <fstream>
#include <algorithm>
#include <vector>
#define NMAX 101
#define LMAX 1000001
#define ll long long
using namespace std;
ifstream f("loto.in");
ofstream g("loto.out");
ll n, a[NMAX], k, el, sumact,rest,S;
struct suma{int t1,t2,t3,s;} v[LMAX];
bool srt( suma a, suma b)
{
    return a.s < b.s;
}
int cb(ll x)
{
    ll st = 1, dr = el;
    while(st <= dr)
    {
        int mij= (st+dr)/2;
        if(v[mij].s==x) return mij;
        if(v[mij].s>x) dr=mij-1;
        else st = mij + 1;
    }

    return -1;
}
void afis(ll x)
{
    for(int i = 1; i <=n; ++i)
        for(int j = 1;  j<=n  ; ++j)
            for(int k = 1; k <= n ; ++k)
                if(a[i]+a[j]+a[k]==x)
                {
                    g<< a[i] <<' ' << a[j] << ' ' << a[k];
                    return;
                }

}
int main()
{
    f>>n>>S;
    for(int i = 1; i <= n; ++i)
        f>> a[i];


    for(int i = 1; i <=n; ++i)
        for(int j = 1;  j<=n  ; ++j)
            for(int k = 1; k <= n ; ++k)
                {
                    v[++el].s=a[i] + a[j] + a[k];
                    v[el].t1= a[i];
                    v[el].t2= a[j];
                    v[el].t3= a[k];

                }

    sort(v+1, v+el+1,srt);

    for(int i = 1; i <=n; ++i)
        for(int j = 1;  j<=n  ; ++j)
            for(int k = 1; k <= n ; ++k)
            {
                sumact = a[i] + a[j] + a[k];
                rest=S-sumact;
                if(cb(rest) >=0)
                {
                    g<< a[i] << ' ' << a[j] << ' ' << a[k]<< ' ';
                    afis(rest);
                    g.close();
                    return 0;
                }
            }
    g<<-1;
    g.close();
    return 0;
}