Eroare de compilare: user.c: In function ‘main’: user.c:17:21: error: ‘p’ undeclared (first use in this function) fscanf(F,"%d", &p); ^ user.c:17:21: note: each undeclared identifier is reported only once for each function it appears in user.c:18:10: error: ‘i’ undeclared (first use in this function) for (i=0,p2=1<<30;p2>0;p2/=2) ^ user.c:18:14: error: ‘p2’ undeclared (first use in this function) for (i=0,p2=1<<30;p2>0;p2/=2) ^ user.c:18:13: warning: left-hand operand of comma expression has no effect [-Wunused-value] for (i=0,p2=1<<30;p2>0;p2/=2) ^ user.c:12:9: warning: unused variable ‘c’ [-Wunused-variable] int a,b,c,d; ^ user.c:12:7: warning: unused variable ‘b’ [-Wunused-variable] int a,b,c,d; ^ user.c:12:5: warning: unused variable ‘a’ [-Wunused-variable] int a,b,c,d; ^