Compilare: main.cpp: In function 'void dfs(int)': main.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int i=0; i<adc[nod].size(); i++){ | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int bfs(int, int)': main.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(int i=0; i<adc[nod].size(); i++){ | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:13: warning: unused variable 'x' [-Wunused-variable] 73 | int s,d,x,y,c; | ^ main.cpp:73:15: warning: unused variable 'y' [-Wunused-variable] 73 | int s,d,x,y,c; | ^ main.cpp:73:17: warning: unused variable 'c' [-Wunused-variable] 73 | int s,d,x,y,c; | ^