Cod sursa(job #2519867)

Utilizator vlad082002Ciocoiu Vlad vlad082002 Data 8 ianuarie 2020 15:24:11
Problema Loto Scor 30
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.67 kb
#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;

ifstream fin("loto.in");
ofstream fout("loto.out");

struct trei {
    int x, y, z, sum;
};

int v[128], n, s;
bool found;
vector <trei> sums;

bool cmp(trei a, trei b) {
    return a.sum < b.sum;
}

void citire() {
    fin >> n >> s;
    for(int i = 1; i <= n; i++)
        fin >> v[i];
}

int cb(int st, int dr, int x) {
    while(dr >= st) {
        int m = (st+dr)/2;
        if(sums[m].sum == x)
            return m;
        else if(sums[m].sum > x)
            dr = m-1;
        else
            st = m+1;
    }
    return -1;
}

void solve() {
    for(int i = 1; i<= n; i++)
        for(int j = 1; j <= n; j++)
            for(int k = 1; k <= n; k++)
                sums.push_back({v[i], v[j], v[k], v[i]+v[j]+v[k]});

    int l = sums.size();
    sort(sums.begin(), sums.end(), cmp);

    //int a = 0, b = l-1;
 //   while(a <= b) {
  //      if(sums[a].sum+sums[b].sum == s) {
 //           found = true;
  //          fout << sums[a].x << ' ' << sums[a].y << ' ' << sums[a].z << ' ' << sums[b].x << ' ' << sums[b].y << ' ' << sums[b].z;
 //           return;
 //       } else if(sums[a].sum + sums[b].sum < s)
  //          a++;
   //     else
   //         b--;
 //   }

    for(int a = 0; a < l; a++) {
        int poz = cb(0, l, s-sums[a].sum);
        if(poz != -1) {
            found = true;
            fout << sums[a].x << ' ' << sums[a].y << ' ' << sums[a].z << ' ' << sums[poz].x << ' ' << sums[poz].y << ' ' << sums[poz].z;
            return;
        }
    }
}


int main() {
    citire();
    solve();
    if (!found) fout << -1;
}