Compilare: main.cpp: In function 'int main()': main.cpp:186:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 186 | for(int i = 0; i < lin[0].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:189:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 189 | for(int i = 0; i < col[0].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:150:17: warning: unused variable 'ans' [-Wunused-variable] 150 | int ans = 0, cnt[2][2] = {0}; // cnt[k][i] = nr. de cifre de pe (i == 0 ? linie : coloana) pe pozitii gresite din alternarea binara k | ^~~