Compilare: main.cpp: In function 'void afis(vec)': main.cpp:45:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 1; i < ceva.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In function 'long long int solve(int*, int)': main.cpp:61:50: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | while(cnt[j] - numere[i].second > 0 && i < numere.size()){ | ~~^~~~~~~~~~~~~~~ main.cpp:80:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i = 0; i < numere.size(); i++){ | ~~^~~~~~~~~~~~~~~