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Cod sursa(job #572660)
#include<fstream>
using namespace std;
ifstream f("f.in");
ofstream g("f.out");
int n,i,j,k,s,pmin,p[100],x[100];
int succesor (int k)
{if (x[k]<p[k]&&k<=n)
{x[k]++;
return 1;
}
return 0;
}
int valid(int k)
{return 1;
}
void back()
{int i,j,k;
k=1;
x[k]=-1;
while (k>0)
{i=0;
while (i==0&&succesor(k))
if (valid (k))
i=1;
if (i==0)
k--;
else
{s=0;
for (j=1;j<=k;j++)
s=s+x[j];
if (s>=pmin)
{for (j=1;j<=k;j++)
g<<x[j]<<" ";
for (j=k+1;j<=n;j++)
g<<"0 ";
g<<'\n';}
k++;
x[k]=1;
}
}
}
int main()
{f>>n>>pmin;
for (i=1;i<=n;i++)
f>>p[i];
back();
f.close();
g.close();
return 0;
}