foo.cc: In function 'int main()':
foo.cc:11:2: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   11 |  else(a>2);5
      |  ^~~~
foo.cc:11:12: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   11 |  else(a>2);5
      |            ^
foo.cc:11:13: error: expected ';' before 'cout'
   11 |  else(a>2);5
      |             ^
      |             ;
   12 |   cout<<21+4*(a-2);
      |   ~~~~       
foo.cc:11:12: warning: statement has no effect [-Wunused-value]
   11 |  else(a>2);5
      |            ^

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