/in/foo.cc: In function 'int main()':
/in/foo.cc:21:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for (i=0;i<lentha;i++)
     ^~~
/in/foo.cc:27:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         for (i=0;i<lentha+lenthb;i++)
         ^~~