Compilare: main.cpp: In function 'void solution()': main.cpp:44:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int j = 0; j < tip[i].size() - 1; ++ j) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int j = 0; j < v.size(); ++ j) | ~~^~~~~~~~~~