Main.c: In function 'main':
Main.c:6:13: warning: variable 'a' set but not used [-Wunused-but-set-variable]
    6 |         int a[n];
      |             ^
Main.c: At top level:
Main.c:24:3: error: expected identifier or '(' before 'for'
   24 |   for(int j=0;j<i;j++)
      |   ^~~
Main.c:24:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
   24 |   for(int j=0;j<i;j++)
      |                ^
Main.c:24:20: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
   24 |   for(int j=0;j<i;j++)
      |                    ^~
Main.c:28:3: error: expected identifier or '(' before 'return'
   28 |   return 0;
      |   ^~~~~~
Main.c:29:1: error: expected identifier or '(' before '}' token
   29 | }
      | ^