foo.cc: In function 'int main()':
foo.cc:11:18: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long int*' [-Wformat=]
   scanf("%d\n",&n);
                ~~^
foo.cc:13:12: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
    gets(str);
            ^
In file included from /usr/include/stdio.h:862:0,
                 from /usr/include/c++/7/cstdio:42,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:46,
                 from foo.cc:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:232:1: note: declared here
 gets (char *__str)
 ^~~~
foo.cc:29:59: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
      printf("%03d-%04d %d\n",li[i-1]/10000,li[i-1]%10000,s);
                              ~~~~~~~~~~~~~                ^
foo.cc:29:59: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long int' [-Wformat=]
foo.cc:29:59: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long int' [-Wformat=]
foo.cc:11:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d\n",&n);
   ~~~~~^~~~~~~~~~~
foo.cc:13:8: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]
    gets(str);
    ~~~~^~~~~
/tmp/ccWo9blw.o: In function `main':
foo.cc:(.text.startup+0x65): warning: the `gets' function is dangerous and should not be used.

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