Compilare: main.cpp: In function 'long long int solutie(int)': main.cpp:19:24: warning: comparison of integer expressions of different signedness: 'std::unordered_map<int, int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 19 | while(m.size() > k) | ~~~~~~~~~^~~ main.cpp:15:22: warning: unused variable 'con' [-Wunused-variable] 15 | long long l = 1, con = 0, sol = 0; | ^~~