foo.cc: In function 'int main()':
foo.cc:41:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   41 |         if (vis[i]) break; vis[i] = true;
      |         ^~
foo.cc:41:28: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   41 |         if (vis[i]) break; vis[i] = true;
      |                            ^~~
foo.cc:55:14: warning: 'T_state' may be used uninitialized [-Wmaybe-uninitialized]
   55 |         else if (S_state == 1)
      |              ^~
foo.cc:43:40: note: 'T_state' was declared here
   43 |         int S = i, S_state = state[i], T_state, len = 0;
      |                                        ^~~~~~~

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