/in/foo.cc: In function 'int main()':
/in/foo.cc:42:26: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  scanf("%d%d", &n, &m);  gets(laji);
                          ^~~~
In file included from /usr/include/c++/6/cstdio:42:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:46,
                 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:42:35: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  scanf("%d%d", &n, &m);  gets(laji);
                                   ^
In file included from /usr/include/c++/6/cstdio:42:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:46,
                 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:46:4: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
In file included from /usr/include/c++/6/cstdio:42:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:46,
                 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:46:10: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
    gets(s);
          ^
In file included from /usr/include/c++/6/cstdio:42:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:46,
                 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:47:8: warning: unused variable 'l' [-Wunused-variable]
    int l = strlen(s);
        ^
/tmp/ccglLzw2.o: In function `main':
foo.cc:(.text.startup+0x3a): warning: the `gets' function is dangerous and should not be used.