Compilare: main.cpp: In function 'void dfs1(long long int)': main.cpp:19:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 0 ; i < adj [ nod ] .size() ; i++ ) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(long long int)': main.cpp:41:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for ( int i = 0 ; i < transposed[ nod] .size() ; i ++ ) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:109:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for ( int j = 0 ; j < marcat[ dolor [ i ] ].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~