foo.cc: In function 'int main()':
foo.cc:72:17: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
   72 |         gets(str);
      |                 ^
In file included from /usr/include/stdio.h:867,
                 from /usr/include/c++/9/cstdio:42,
                 from /usr/include/c++/9/ext/string_conversions.h:43,
                 from /usr/include/c++/9/bits/basic_string.h:6496,
                 from /usr/include/c++/9/string:55,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/array:39,
                 from /usr/include/c++/9/tuple:39,
                 from /usr/include/c++/9/bits/stl_map.h:63,
                 from /usr/include/c++/9/map:61,
                 from foo.cc:9:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.cc:72:17: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
   72 |         gets(str);
      |                 ^
In file included from /usr/include/stdio.h:867,
                 from /usr/include/c++/9/cstdio:42,
                 from /usr/include/c++/9/ext/string_conversions.h:43,
                 from /usr/include/c++/9/bits/basic_string.h:6496,
                 from /usr/include/c++/9/string:55,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/array:39,
                 from /usr/include/c++/9/tuple:39,
                 from /usr/include/c++/9/bits/stl_map.h:63,
                 from /usr/include/c++/9/map:61,
                 from foo.cc:9:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.cc:68:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |     scanf("%d%d",&n,&p);
      |     ~~~~~^~~~~~~~~~~~~~
foo.cc:72:13: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]
   72 |         gets(str);
      |         ~~~~^~~~~
/usr/bin/ld: /tmp/ccqvEPHz.o: in function `main':
foo.cc:(.text.startup+0x99): warning: the `gets' function is dangerous and should not be used.

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