/in/foo.cc: In function 'int main()':
/in/foo.cc:14:1: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
 gets(c);
 ^~~~
In file included from /in/foo.cc:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.cc:14:7: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
 gets(c);
       ^
In file included from /in/foo.cc:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.cc:13:7: warning: unused variable 'n' [-Wunused-variable]
 { int n,l,t,i,j,k,p,a;
       ^
/in/foo.cc:13:19: warning: unused variable 'p' [-Wunused-variable]
 { int n,l,t,i,j,k,p,a;
                   ^
/tmp/ccct9HGr.o: In function `main':
foo.cc:(.text.startup+0x16): warning: the `gets' function is dangerous and should not be used.