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Cod sursa(job #792039)
//
// main.cpp
// a1
//
// Created by abc on 9/20/12.
// Copyright (c) 2012 abc. All rights reserved.
//
# include <iostream>
# include <cstdio>
# include <cstdlib>
# include <iomanip>
# include <cmath>
# include <map>
# include <vector>
# include <set>
# include <algorithm>
using namespace std;
# define ISALPHA(Q) (('a' <= Q && Q <= 'z') || ('A' <= Q && Q <= 'Z'))
# define ISDIGIT(a) ('0' <= a && a <= '9')
# define TODIGIT(a) (a - '0')
# define LIKELY(a) (__builtin_expect((a), 1))
# define UNLIKELY(a) (__builtin_expect(!!(a), 0))
typedef unsigned char U8;
typedef long long LONG;
void init()
{
freopen("loto.in", "r", stdin);
freopen("loto.out", "w", stdout);
}
template <typename T> void read(vector<T> &vec)
{
for(size_t i=0; i<vec.size(); ++i) {
cin >> vec[i];
}
}
typedef struct {
int sum;
int a,b,c;
} Cont_t;
bool cmp(const Cont_t &a, const Cont_t &b)
{
return (a.sum < b.sum);
}
int main(int argc, const char * argv[])
{
init();
int N, S; cin >> N >> S;
vector<int> vec(N); read(vec);
//sort(vec.begin(), vec.end());
vector<Cont_t> conv; conv.reserve(N*N*N);
for(int i=0; LIKELY(i<N); ++i)
{
for(int k=0; LIKELY(k<N); ++k)
{
for(int j=0; LIKELY(j<N); ++j)
{
conv.push_back(Cont_t { .sum = (vec[i] + vec[k] + vec[j]),
.a = vec[i], .b = vec[k], .c = vec[j]});
}
}
}
sort(conv.begin(), conv.end(), cmp);
for(size_t left=0, right=conv.size()-1; left <= right; )
{
int tS = conv[left].sum + conv[right].sum;
if (tS == S)
{
printf("%d %d %d %d %d %d", conv[left].a, conv[left].b, conv[left].c,
conv[right].a, conv[right].b, conv[right].c);
return 0;
}
else if (tS < S) ++left;
else if (tS > S) --right;
else {
throw(42);
}
}
cout << -1;
return 0;
}