Compilare: main.cpp: In function 'int main()': main.cpp:56:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int i=0; i<v[0].size(); i++) | ~^~~~~~~~~~~~ main.cpp:44:19: warning: 'rad' may be used uninitialized [-Wmaybe-uninitialized] 44 | vectorliniemax(rad,0); | ~~~~~~~~~~~~~~^~~~~~~ main.cpp:36:9: note: 'rad' was declared here 36 | int rad; | ^~~