Eroare de compilare in evaluator: user.c: In function 'init': user.c:22: error: 'nr' undeclared (first use in this function) user.c:22: error: (Each undeclared identifier is reported only once user.c:22: error: for each function it appears in.) user.c: At top level: user.c:24: error: expected identifier or '(' before '}' token user.c: In function 'solve': user.c:32: error: 'nr' undeclared (first use in this function) user.c:32: error: expected ')' before ';' token user.c:33: error: expected expression before '}' token