Cod sursa(job #1731454)

Utilizator Vlad_317Vlad Panait Vlad_317 Data 18 iulie 2016 23:31:05
Problema Loto Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.49 kb
#include <stdio.h>
#include <algorithm>
using namespace std;

const int MAXN = 100;

int v[MAXN + 1], cnt = 0;
struct sums
{
    int val, a, b, c;
} sum[MAXN * MAXN * MAXN + 1];

bool cmp(sums x, sums y)
{
    return x.val < y.val;
}

int bs(int x)
{
    int i = 0, step = 1 << 20;
    while(step)
    {
        if(i + step <= cnt && sum[i + step].val < x)
            i += step;
        step >>= 1;
    }
    return i + 1;
}

int main()
{
    FILE *fin, *fout;

    fin = fopen("loto.in", "r");
    fout = fopen("loto.out", "w");

    int n, s;

    fscanf(fin, "%d%d", &n, &s);

    for(int i = 1; i <= n; i++)
        fscanf(fin, "%d", &v[i]);

    for(int i = 1; i <= n; i++)
        for(int j = 1; j <= n; j++)
            for(int k = 1; k <= n; k++)
            {
                sum[++cnt].val = v[i] + v[j] + v[k];
                sum[cnt].a = v[i];
                sum[cnt].b = v[j];
                sum[cnt].c = v[k];
            }

    sort(sum + 1, sum + cnt + 1, cmp);


    for(int i = 1; i <= n; i++)
        for(int j = 1; j <= n; j++)
            for(int k = 1; k <= n; k++)
            {
                int x = v[i] + v[j] + v[k];
                int p = bs(s - x);
                if(sum[p].val + x == s)
                {
                    fprintf(fout, "%d %d %d %d %d %d", sum[p].a, sum[p].b, sum[p].c, v[i], v[j], v[k]);
                    return 0;
                }
            }

    fprintf(fout, "-1");
    return 0;
}