Compilare: main.cpp:13:28: warning: integer overflow in expression of type 'int' results in '2147483647' [-Woverflow] 13 | const int INF = (1<<31)-1; | ~~~~~~~^~ main.cpp: In constructor 'graph::graph(int, int, std::vector<std::vector<int> >&)': main.cpp:39:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | 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:47:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for( int j = 0; j < ad[i].size(); ++j){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'void graph::DFS(int, bool*)': main.cpp:70:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for( int i = 0; i < Ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::BFS(int)': main.cpp:87:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for( int i = 0; i < Ad[x].size(); ++i ){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'void graph::Kruskal()': main.cpp:171:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 171 | for( int i = 0; i < Sol.size(); ++i ) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graph::Dijkstra(int)': main.cpp:199:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 199 | for( int i = 0; i < ad[nod].size(); ++i ){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:216:9: warning: unused variable 'N' [-Wunused-variable] 216 | int N, M, x, y, v; | ^ main.cpp:216:12: warning: unused variable 'M' [-Wunused-variable] 216 | int N, M, x, y, v; | ^ main.cpp:216:15: warning: unused variable 'x' [-Wunused-variable] 216 | int N, M, x, y, v; | ^ main.cpp:216:18: warning: unused variable 'y' [-Wunused-variable] 216 | int N, M, x, y, v; | ^ main.cpp:216:21: warning: unused variable 'v' [-Wunused-variable] 216 | int N, M, x, y, v; | ^