Borderou de evaluare (job #807050)

Compilare: main.cpp: In function 'int dfs(std::vector<std::vector<int> >&, std::vector<std::vector<int> >&, int, int, int&)': main.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 15 | if(ni>=0 && ni<a.size() && nj>=0 && nj<a[0].size()) { | ~~^~~~~~~~~ main.cpp:15:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 15 | if(ni>=0 && ni<a.size() && nj>=0 && nj<a[0].size()) { | ~~^~~~~~~~~~~~