foo.c: In function 'main':
foo.c:7:25: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    7 |                 scanf("%d",b[i]);
      |                        ~^  ~~~~
      |                         |   |
      |                         |   int
      |                         int *
foo.c:9:20: error: expected ',' or ';' before ':' token
    9 |         for(int i=0:i<a;i++){
      |                    ^
foo.c:9:28: error: expected ';' before ')' token
    9 |         for(int i=0:i<a;i++){
      |                            ^
      |                            ;
foo.c:12:23: error: expected ';' before 'return'
   12 |         printf("%d",c)
      |                       ^
      |                       ;
......
   15 | return 0;
      | ~~~~~~                 

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