Compilare: user.c: In function ‘main’: user.c:32:7: warning: unused variable ‘arie’ [-Wunused-variable] int arie = 0, suma[4]; ^ user.c:11:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d\n", &T); ^ user.c:18:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%c",&c[0]); ^ user.c:28:10: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%c", &c[strlen(c)]); ^