/in/foo.c: In function 'main':
/in/foo.c:3:19: warning: left-hand operand of comma expression has no effect [-Wunused-value]
 {   int fib[20]=(1,1),i;
                   ^
/in/foo.c:3:17: error: invalid initializer
 {   int fib[20]=(1,1),i;
                 ^
/in/foo.c:6:2: error: expected ';' before 'for'
  for(i=0;i<20;i++)
  ^~~