Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:20:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<punct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=0;i<quiz[nod].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:19:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 19 | if(quiz[nod].size()) | ^ main.cpp:25:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(int i=0;i<a[nod].size();i++) | ~^~~~~~~~~~~~~~