Compilare: user.c: In function ‘main’: user.c:66:10: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:69:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&x[i]); ^ user.c:71:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.c:74:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&op,&v); ^ user.c: In function ‘mod_1’: user.c:37:9: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (x[m]>val) ^ user.c: In function ‘mod_2’: user.c:55:9: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (x[m]<val) ^