# Cod sursa(job #153567)

Utilizator Data 10 martie 2008 16:53:19 Combinari 100 cpp done Arhiva educationala 1.09 kb
``````#include <cstdio>
#include <vector>

using namespace std;

typedef long long LL;
typedef vector<int> vi;
typedef vector< vi > vii;
typedef vector<string> vs;
typedef vector<double> vd;
typedef pair<int, int> ii;
#define PB push_back
#define SZ(v) v.size()
#define ALL(v) (v).begin(), (v).end()
#define FORIT(i,c) for (typeof((c).end()) i=(c).begin(); i!=(c).end(); ++i)
#define FOR(i,n) for (int i = 0; i<(n); ++i)
#define FORE(i,n) for (int i = 0; i<=(n); ++i)
#define FORI(i,n1,n2) for (int i = n1; i<(n2); ++i)
#define FORIE(i,n1,n2) for (int i = n1; i<=(n2); ++i)
#define FORV(i,v) for (unsigned int i = 0; i<SZ(v); ++i)

#define INF 0x3f3f3f3f
#define EPS 1e-9

int N,K;
int A[20];

void back(int k)
{
if (k>K)
{
FORIE(i, 1, K)
printf("%d ", A[i]);
printf("\n");
return;
}

FORIE(i, A[k-1]+1, N)
{
A[k] = i;
back(k+1);
}
}

int main()
{
freopen("combinari.in", "r", stdin);
freopen("combinari.out", "w", stdout);

scanf("%d %d", &N, &K);

back(1);

return 0;
}
``````