Compilare: main.cpp: In function 'void read()': main.cpp:31:8: warning: unused variable 'w' [-Wunused-variable] 31 | el w; | ^ main.cpp: In function 'void solve()': main.cpp:99:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for(i = 0; i < L[w1.nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:85:11: warning: unused variable 'j' [-Wunused-variable] 85 | int i,j,nod,cost; | ^