Compilare: main.c: In function 'main': main.c:13:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:15:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &h[i] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:19:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &q ); ^~~~~~~~~~~~~~~~~~~~~~~ main.c:21:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d%d", &a, &b, &c, &d ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~