Fixed misclassification of diophantine equation
Fixed misclassification of diophantine equation

kaushik94/sympy,drufat/sympy,madan96/sympy,sampadsaha5/sympy,chaffra/sympy,chaffra/sympy,skidzo/sympy,drufat/sympy,postvakje/sympy,postvakje/sympy,jaimahajan1997/sympy,yashsharan/sympy,yashsharan/sympy,madan96/sympy,aktech/sympy,aktech/sympy,madan96/sympy,aktech/sympy,chaffra/sympy,yashsharan/sympy,kaushik94/sympy,sampadsaha5/sympy,postvakje/sympy,souravsingh/sympy,souravsingh/sympy,skidzo/sympy,jaimahajan1997/sympy,drufat/sympy,jaimahajan1997/sympy,kaushik94/sympy,sampadsaha5/sympy,skidzo/sympy,souravsingh/sympy