/in/foo.c: In function 'main':
/in/foo.c:7:7: error: 'l' undeclared (first use in this function)
    7 | int j=l;
      |       ^
/in/foo.c:7:7: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:9:10: error: expected ',' or ';' before ':' token
    9 | int sum=0:
      |          ^
/in/foo.c:13:14: error: 'it' undeclared (first use in this function); did you mean 'i'?
   13 | for(i=1;i<=n;it+)
      |              ^~
      |              i
/in/foo.c:13:17: error: expected expression before ')' token
   13 | for(i=1;i<=n;it+)
      |                 ^
/in/foo.c:17:5: error: 'sumt' undeclared (first use in this function); did you mean 'sum'?
   17 | sum=sumt+j;
      |     ^~~~
      |     sum
/in/foo.c:9:5: warning: variable 'sum' set but not used [-Wunused-but-set-variable]
    9 | int sum=0:
      |     ^~~
/in/foo.c: At top level:
/in/foo.c:19:8: error: expected declaration specifiers or '...' before '%' token
   19 | printf(%d", sum);
      |        ^
/in/foo.c:19:10: warning: missing terminating " character
   19 | printf(%d", sum);
      |          ^
/in/foo.c:19:10: error: missing terminating " character
   19 | printf(%d", sum);
      |          ^~~~~~~~
/in/foo.c:21:12: error: expected declaration specifiers or '...' before '}' token
   21 |            }
      |            ^
/in/foo.c:21:12: error: expected ';', ',' or ')' before '}' token