foo.c: In function 'main':
foo.c:8:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
  gets(in);
  ^~~~
In file included from /usr/include/stdio.h:862:0,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:232:1: note: declared here
 gets (char *__str)
 ^~~~
foo.c:9:9: warning: unused variable 'n' [-Wunused-variable]
     int n, j;
         ^
foo.c:7:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", zimu);
  ^~~~~~~~~~~~~~~~~
foo.c:8:2: warning: ignoring return value of 'gets', declared with attribute warn_unused_result [-Wunused-result]
  gets(in);
  ^~~~~~~~
foo.c:10:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%[^\n]", in); 
     ^~~~~~~~~~~~~~~~~~~
/tmp/cceWaLLJ.o: In function `main':
foo.c:(.text.startup+0x38): warning: the `gets' function is dangerous and should not be used.

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