Compilare: main.cpp: In function 'std::vector<int> solve(std::vector<std::vector<int> >&)': main.cpp:14:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(int i = 0;i < v[n - 1].size();++i) | ~~^~~~~~~~~~~~~~~~~ main.cpp:22:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int j = 0;j < tmp.size();++j) | ~~^~~~~~~~~~~~ main.cpp:30:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int j = 0;j < tmp.size();++j) | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:68:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0;i < ret.size();++i) | ~~^~~~~~~~~~~~