Compilare: main.cpp: In function 'void Lanturi(int, int)': main.cpp:30:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | while(i < G[x].size() && viz[G[x][i]] == 1) | ~~^~~~~~~~~~~~~ main.cpp:32:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if(i < G[x].size()) j = i, i++; | ~~^~~~~~~~~~~~~ main.cpp:33:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for( ;i < G[x].size();i++) | ~~^~~~~~~~~~~~~ main.cpp:38:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(i = 0;i < G[x].size();i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int Solve(int, int)': main.cpp:90:9: warning: variable 'niv_x' set but not used [-Wunused-but-set-variable] 90 | int niv_x = niv[x], niv_y = niv[y]; | ^~~~~ main.cpp:90:25: warning: variable 'niv_y' set but not used [-Wunused-but-set-variable] 90 | int niv_x = niv[x], niv_y = niv[y]; | ^~~~~