Compilare: main.cpp: In function 'int main()': main.cpp:96:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for(int i=0;i<nor.size()-1;i++) nm[{nor[i],nor[i+1]}]=i; | ~^~~~~~~~~~~~~ main.cpp:114:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | for(int i=0;i<nor.size();i++) | ~^~~~~~~~~~~