Compilare: user.c: In function ‘main’: user.c:10:5: warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘char (*)[100001]’ [-Wformat=] scanf("%s%s", &a, &b); ^ user.c:10:5: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] user.c:8:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sr.in","r",stdin); ^ user.c:9:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sr.out","w",stdout); ^ user.c:10:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s%s", &a, &b); ^