Compilare: main.cpp:14:28: warning: integer overflow in expression of type 'int' results in '2147483647' [-Woverflow] 14 | const int INF = (1<<31)-1; | ~~~~~~~^~ main.cpp: In constructor 'graph::graph(int, int, std::vector<std::vector<int> >&)': main.cpp:41:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for( int j = 0; j < ad[i].size(); ++j) | ~~^~~~~~~~~~~~~~ main.cpp: In constructor 'graph::graph(int, int, std::vector<std::vector<int> >&, std::vector<std::vector<int> >&)': main.cpp:49:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for( int j = 0; j < ad[i].size(); ++j){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'void graph::DFS(int, bool*)': main.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for( int i = 0; i < Ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::DFS_r(int, std::vector<bool>&, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:83:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for( int i = 0; i < ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::BFS(int)': main.cpp:100:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for( int i = 0; i < Ad[x].size(); ++i ){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'void graph::Kruskal()': main.cpp:184:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 184 | for( int i = 0; i < Sol.size(); ++i ) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graph::Dijkstra(int)': main.cpp:201:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 201 | for( int i = 0; i < Ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::BellmanFord(int)': main.cpp:233:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 233 | for( int i = 0; i < Ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::TopoDFS(int, std::vector<bool>&, std::stack<int>&)': main.cpp:267:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 267 | for( int i = 0; i < Ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > graph::StronglyConnectedComponents()': main.cpp:292:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 292 | for( int j = 0; j < Ad[i].size(); ++j) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:331:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 331 | for( int i = 0; i < scc.size(); ++i ){ | ~~^~~~~~~~~~~~ main.cpp:332:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 332 | for( int j = 0; j < scc[i].size(); ++j ) | ~~^~~~~~~~~~~~~~~