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Cod sursa(job #522124)
#include<fstream.h>
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n,x[17],k,i,j,s[17];
void afis()
{
for(int i=1;i<=n;i++) if(x[i]) g<<i<<' ';
g<<'\n';
}
void back()
{
k = 1;
x[k] = - 1;
do
{
while(x[k] < 1)
{
x[k]++;
s[k] = s[k - 1] + x[k];
if(k == n)
{
if(s[n]) afis();
}
else
{
k++;x[k] = -1;
}
}
k--;
}
while(k);
}
int main()
{
f>>n;
back();
g.close();
return 0;
}