Compilare: user.c: In function ‘main’: user.c:20:22: warning: unused variable ‘a2’ [-Wunused-variable] int j, putt, a2; ^ user.c:9:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, p, t, i; ^ user.c:9:9: warning: unused variable ‘n’ [-Wunused-variable] int n, m, p, t, i; ^ user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &a, &b, &p); ^