Compilare: main.cpp: In function 'void bfs(int)': main.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for( j = 0; j < nodes[i].next.size(); j++ ){ | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:55:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for( j = 0; j < nodes[i].next.size(); j++ ){ | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | while( i < v.size() ){ | ~~^~~~~~~~~~ main.cpp:89:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | while(v[i] == v[i + 1] && i < v.size() ){ | ~~^~~~~~~~~~ main.cpp:101:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 101 | for( i = 0; i < aux.size(); i++ ) | ~~^~~~~~~~~~~~