Compilare: main.cpp: In function 'void dfs(int)': main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for (int i = 0;i < c[node].size();i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:32:9: warning: unused variable 'ans' [-Wunused-variable] 32 | int ans = 0; | ^~~ main.cpp:46:20: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 46 | fout << dp[r][1]; | ^ main.cpp:31:13: note: 'r' was declared here 31 | int a,b,r; | ^