Eroare de compilare: user.c:4:1: warning: return type defaults to ‘int’ [enabled by default] main() ^ user.c: In function ‘main’: user.c:17:9: warning: format ‘%lf’ expects argument of type ‘double *’, but argument 3 has type ‘long int *’ [-Wformat=] fscanf(fp, "%lf", &v1[i]); ^ user.c:21:9: warning: format ‘%lf’ expects argument of type ‘double *’, but argument 3 has type ‘long int *’ [-Wformat=] fscanf(fp, "%lf", &v2[i]); ^ user.c:40:9: error: ‘suma’ undeclared (first use in this function) suma += v1[i] * v2[i]; ^ user.c:40:9: note: each undeclared identifier is reported only once for each function it appears in user.c:7:23: warning: unused variable ‘lf’ [-Wunused-variable] int i, j, N, aux, lf=0; ^