Compilare: main.cpp: In function 'int main()': main.cpp:54:21: warning: comparison of integer expressions of different signedness: 'std::vector<ura>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 54 | if(st.size()==ckc) | ~~~~~~~~~^~~~~ main.cpp:66:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ura>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(int i=0;i<st.size();i++) | ~^~~~~~~~~~