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Cod sursa(job #34924)
#include<fstream>
using namespace std;
long int t,n,b[100];
int k,p,u;
int main()
{
ifstream fin("divprim.in");
ofstream fout("divprim.out");
int i,j,z,f,g;
fin>>t;
for(i = 1; i <= t; i++)
{
fin>>n>>k;
for(j = n; j >=1; j--)
{
for(z = 2; z <= j/2; z++)
if(j%z == 0)
b[u++]= z;
for(g = 0; g < u; g++)
{
for(f = 2; f <= z/2; f++)
if(b[g]%f != 0)
p++;
}
if(p == k)
{
fout<<j<<"\n";
break;
}
else if( p != k)
{
fout<<0<<"\n";
for(g = 0; g < u; g++)
b[g] = 0;
p = 0;
}
}
}
fin.close();
fout.close();
return 0;
}