Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < l[x].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(dp[maxd].first) ^~~~~ main.cpp:64:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' maxd --; ^~~~ main.cpp:72:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j = 1; j <= d; j++) ^~~ main.cpp:87:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' out << dp[d].first; ^~~