foo.c:1:1: error: expected identifier or '(' before '<' token
    1 | <span style="font-size:18px;">#include<stdio.h>
      | ^
foo.c:1:31: error: stray '#' in program
    1 | <span style="font-size:18px;">#include<stdio.h>
      |                               ^
foo.c: In function 'main':
foo.c:22:2: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   22 |  printf("a");
      |  ^~~~~~
foo.c:22:2: warning: incompatible implicit declaration of built-in function 'printf'
foo.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | <span style="font-size:18px;">#include<stdio.h>
foo.c:23:2: warning: implicit declaration of function 'panduan' [-Wimplicit-function-declaration]
   23 |  panduan(a,sizeof(a)/sizeof(a[0]));
      |  ^~~~~~~
foo.c: At top level:
foo.c:27:2: error: expected identifier or '(' before '<' token
   27 | }</span>
      |  ^

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