/in/foo.c: In function 'main':
/in/foo.c:17:18: error: expected identifier or '(' before '=' token
   17 |         for (int =0;i<3;i++) {
      |                  ^
/in/foo.c:17:21: error: 'i' undeclared (first use in this function)
   17 |         for (int =0;i<3;i++) {
      |                     ^
/in/foo.c:17:21: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:22:40: warning: zero-length gnu_printf format string [-Wformat-zero-length]
   22 |                                 printf("");
      |                                        ^~
/in/foo.c:4:13: warning: variable 'transposed' set but not used [-Wunused-but-set-variable]
    4 |         int transposed[3][2];
      |             ^~~~~~~~~~