Compilare: main.c: In function 'main': main.c:9:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^~~~~~~~~~~~~~~~~~~~~ main.c:13:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^~~~~~~~~~~~~~~~~~~~~ main.c:25:5: warning: 'pmax' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout, "%d %d %d", smax, pmin + 1, pmax + 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:25:5: warning: 'pmin' may be used uninitialized in this function [-Wmaybe-uninitialized]