Compilare: main.cpp: In function 'void solve_test()': main.cpp:71:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<fractie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i=0; i<vxy.size() && i<vab.size(); i++) | ~^~~~~~~~~~~ main.cpp:71:35: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<fractie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i=0; i<vxy.size() && i<vab.size(); i++) | ~^~~~~~~~~~~