foo.c: In function 'OutPut':
foo.c:14:21: warning: implicit declaration of function 'Panduan' [-Wimplicit-function-declaration]
   14 |                 if (Panduan(b,a[i])==true)
      |                     ^~~~~~~
foo.c: At top level:
foo.c:19:6: error: conflicting types for 'Panduan'; have '_Bool(char *, char)'
   19 | bool Panduan(char a[], char n)
      |      ^~~~~~~
foo.c:14:21: note: previous implicit declaration of 'Panduan' with type 'int()'
   14 |                 if (Panduan(b,a[i])==true)
      |                     ^~~~~~~

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