Compilare: user.c: In function ‘main’: user.c:29:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d",nr+N); ^ user.c:30:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(g,"%d",nr+N); ^ user.c:6:16: warning: unused variable ‘x’ [-Wunused-variable] int *v,i,j,x,N; ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&N); ^