Compilare: main.c: In function 'main': main.c:12:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^~~~~~~~~~~~~~~~~~~~~ main.c:14:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &m, &x); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:17:13: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v); ^~~~~~~~~~~~~~~~~~~~~