Compilare: main.cpp: In function 'int main()': main.cpp:83:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(i=0; i<ver.size()-1; i++) | ~^~~~~~~~~~~~~ main.cpp:85:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(z=i+1; z<ver.size(); z++) | ~^~~~~~~~~~~ main.cpp:91:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for(j=0; j<ori.size(); j++) | ~^~~~~~~~~~~