Compilare: main.cpp: In function 'void solve()': main.cpp:91:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (int j = 1; j < v[i].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:103:36: warning: comparison of integer expressions of different signedness: 'std::unordered_set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 103 | if (rahat[it.first].size() == n) { | ~~~~~~~~~~~~~~~~~~~~~~~^~~~