Compilare: user.c: In function ‘main’: user.c:7:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &t); ^ user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.c:11:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^ user.c:17:7: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a < b) ^ user.c:17:7: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized]