Compilare: main.cpp: In function 'void buildGraph()': main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i=0;i<oceansAdj[k].size();i++){ | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:61:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int j=i+1;j<oceansAdj[k].size();j++){ | ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:74:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int it=0;it<adj[x].size();it++){ | ~~^~~~~~~~~~~~~~