Compilare: main.cpp: In function 'int main()': main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for (int i = 0; i<ans.size(); i++) { | ~^~~~~~~~~~~ main.cpp:75:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 75 | if (ans[i].size() > nrmax) { | ~~~~~~~~~~~~~~^~~~~~~ main.cpp:95:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for(int i = 0; i < comp.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:98:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | if(i == comp.size() - 1) { | ~~^~~~~~~~~~~~~~~~~~