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Cod sursa(job #380737)
#include <fstream>
using namespace std;
long long n, a[1000], k;
void write() {
ofstream fo("combinari.out");
long long i;
for (i = 1; i <= k; i++)
fo << a[i] << ' ';
}
void comb (long long l) {
long long t i;
if (l <= k) {
for (i = a[l-1] + 1; i <= n - k + l; i++) {
a[l] = i;
comb (l + 1);
}
}
else
write();
}
int main () {
ifstream fi("combinari.in");
fi>>n>>k;
comb (1);
return 0;
}