/in/foo.cc: In function 'int main()':
/in/foo.cc:33:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = name.size() / 2; j < names.size(); j++) {
                                  ~~^~~~~~~~~~~~~~
/in/foo.cc:54:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = adds.size() / 2; j < adds.size(); j++) {
                                  ~~^~~~~~~~~~~~~