foo.c: In function 'main':
foo.c:6:9: warning: missing terminating " character
    6 |  printf("
      |         ^
foo.c:6:9: error: missing terminating " character
foo.c:13:2: error: expected ')' before numeric constant
   13 | 4
      |  ^
      |  )
   14 |    0   0   1
      |    ~
foo.c:30:6: warning: missing terminating " character
   30 |      ");
      |      ^
foo.c:30:6: error: missing terminating " character
   30 |      ");
      |      ^~~
foo.c:13:1: warning: passing argument 1 of 'printf' makes pointer from integer without a cast [-Wint-conversion]
   13 | 4
      | ^
      | |
      | int
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:105:32: note: expected 'const char * restrict' but argument is of type 'int'
  105 | printf (const char *__restrict __fmt, ...)
      |         ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
foo.c:32:1: warning: format not a string literal and no format arguments [-Wformat-security]
   32 | }
      | ^
foo.c:31:15: error: expected ';' before '}' token
   31 |      return 0;
      |               ^
      |               ;
   32 | }
      | ~              
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    5 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~

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