/in/foo.cc: In member function 'void BigIntArray::sortArray()':
/in/foo.cc:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BigInt>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int i = 0; i < array.size(); i++) {
      |                         ~~^~~~~~~~~~~~~~
/in/foo.cc:57:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BigInt>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |             for (int j = i + 1; j < array.size(); j++) {
      |                                 ~~^~~~~~~~~~~~~~
/in/foo.cc: In member function 'void BigIntArray::printArray() const':
/in/foo.cc:66:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BigInt>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         for (int i = 0; i < array.size(); i++) {
      |                         ~~^~~~~~~~~~~~~~