Compilare: user.c: In function ‘main’: user.c:21:5: warning: format ‘%lu’ expects argument of type ‘long unsigned int *’, but argument 3 has type ‘int *’ [-Wformat=] fscanf(f,"%lu\n",&T); ^ user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lu\n",&T); ^ user.c:25:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d\n",&N); ^ user.c:27:20: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] {fscanf(f,"%d",&k); V[j]=k;} ^ user.c:28:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"\n"); ^