/in/foo.cc: In function 'void calWeight(Node*, int)':
/in/foo.cc:47:13: warning: array subscript has type 'char' [-Wchar-subscripts]
w[node->c] = 1;
^
/in/foo.cc:49:13: warning: array subscript has type 'char' [-Wchar-subscripts]
w[node->c] = depth;
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:63:9: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
while (gets(s)) {
^~~~
In file included from /usr/include/c++/6/cstdio:42:0,
from /usr/include/c++/6/ext/string_conversions.h:43,
from /usr/include/c++/6/bits/basic_string.h:5417,
from /usr/include/c++/6/string:52,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
^~~~
/in/foo.cc:63:15: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
while (gets(s)) {
^
In file included from /usr/include/c++/6/cstdio:42:0,
from /usr/include/c++/6/ext/string_conversions.h:43,
from /usr/include/c++/6/bits/basic_string.h:5417,
from /usr/include/c++/6/string:52,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
^~~~
/in/foo.cc:70:12: warning: array subscript has type 'char' [-Wchar-subscripts]
cnt[s[i]]++;
^
/in/foo.cc:101:17: warning: array subscript has type 'char' [-Wchar-subscripts]
res += w[s[i]];
^
/tmp/ccLi59cD.o: In function `main':
foo.cc:(.text.startup+0x28): warning: the `gets' function is dangerous and should not be used.