Compilare: user.c: In function ‘exp_matrice’: user.c:8:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.c:8:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.c: In function ‘putere’: user.c:71:9: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(g,"%d",rez[2][1]); ^ user.c: In function ‘main’: user.c:82:14: warning: variable ‘g’ set but not used [-Wunused-but-set-variable] FILE *f,*g; ^ user.c:88:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&k); ^