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#include <stdio.h>
void main()
{
printf("\n i am in main");
italy();
printf("\n i am finally back in main");
}
italy()
{
	printf("\n i am in italy");
	brazil();
	printf("\n i am back in italy");
}
brazil()
{
	printf("\n i am in brazil");
	argentina();
}
argentina()
{
	printf("\n i am in argentina");
}
getch();
return 0;
}

prog.c:2:6: warning: return type of 'main' is not 'int' [-Wmain]
 void main()
      ^
prog.c: In function 'main':
prog.c:5:1: warning: implicit declaration of function 'italy' [-Wimplicit-function-declaration]
 italy();
 ^
prog.c: At top level:
prog.c:8:1: warning: return type defaults to 'int' [-Wimplicit-int]
 italy()
 ^
prog.c: In function 'italy':
prog.c:11:2: warning: implicit declaration of function 'brazil' [-Wimplicit-function-declaration]
  brazil();
  ^
prog.c: At top level:
prog.c:14:1: warning: return type defaults to 'int' [-Wimplicit-int]
 brazil()
 ^
prog.c: In function 'brazil':
prog.c:17:2: warning: implicit declaration of function 'argentina' [-Wimplicit-function-declaration]
  argentina();
  ^
prog.c: At top level:
prog.c:19:1: warning: return type defaults to 'int' [-Wimplicit-int]
 argentina()
 ^
prog.c:23:1: warning: data definition has no type or storage class
 getch();
 ^
prog.c:23:1: warning: type defaults to 'int' in declaration of 'getch' [-Wimplicit-int]
prog.c:24:1: error: expected identifier or '(' before 'return'
 return 0;
 ^
prog.c:25:1: error: expected identifier or '(' before '}' token
 }
 ^
prog.c: In function 'italy':
prog.c:13:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
prog.c: In function 'brazil':
prog.c:18:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
prog.c: In function 'argentina':
prog.c:22:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Standard output is empty