/in/foo.cc: In function 'int countExpressions(int)':
/in/foo.cc:8:5: error: 'generateExpressions' was not declared in this scope; did you mean 'countExpressions'?
    8 |     generateExpressions("1", 2, expressions);
      |     ^~~~~~~~~~~~~~~~~~~
      |     countExpressions
/in/foo.cc:11:13: error: 'evaluateExpression' was not declared in this scope
   11 |         if (evaluateExpression(expr) == N) {
      |             ^~~~~~~~~~~~~~~~~~