Compilare: main.cpp: In function 'void build_sort_top(int, int)': main.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int j=0;j<L[nod].size();j++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:20:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int j=0;j<L[nod].size();j++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(i=0;i<sort_top.size();i++) | ~^~~~~~~~~~~~~~~~ main.cpp:53:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(i=0;i<sol.size();i++) | ~^~~~~~~~~~~