Compilare: user.c: In function ‘main’: user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &s, &t); ^ user.c:17:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &c, &p); ^ user.c:15:30: warning: ‘i’ is used uninitialized in this function [-Wuninitialized] b=e=0; tot=0LL; v[0].timp=i; ^