Compilare: user.c: In function ‘main’: user.c:34:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d", &n ); ^~~~~~~~~~~~~~~~~~~~~~~~ user.c:37:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d", &val[i] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:40:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d%d", &x, &y ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~