Compilare: main.cpp: In function 'int main()': main.cpp:76:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for (int i = 1; i < nrm[0].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:86:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for (int i = 1; i < nrm[1].size(); i++) | ~~^~~~~~~~~~~~~~~