Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:15:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int i=0;i<a[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i=0;i<a[nod].size();i++) | ~^~~~~~~~~~~~~~