Compilare: main.cpp: In function 'void unite(int)': main.cpp:31:39: warning: unused variable 'w' [-Wunused-variable] 31 | int x = E[idx].x , y = E[idx].y , w = E[idx].w; | ^ main.cpp: In function 'int solve(int, int)': main.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(int i = 0 ; i < timp[x].size() ; ++ i){ | ~~^~~~~~~~~~~~~~~~ main.cpp:66:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | while(j < timp[y].size() && timp[y][j].fi < componenta) | ~~^~~~~~~~~~~~~~~~