Compilare: user.c: In function ‘main’: user.c:59:24: warning: variable ‘s’ set but not used [-Wunused-but-set-variable] int n, k, i, j, S, s, semn, p; ^ user.c:61:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.c:66:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &a, &b ); ^