Compilare: main.cpp: In function 'bool anc(long long int, long long int)': main.cpp:23:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 23 | if (in[x] <= in[y] && out[x] >= out[y]||(!x)) return true; | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:47:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 47 | main() | ^~~~ main.cpp: In function 'int main()': main.cpp:96:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 96 | for(int i=1;i<=n;++i) cout << d[i] << ' ';cout << '\n'; | ^~~ main.cpp:96:51: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 96 | for(int i=1;i<=n;++i) cout << d[i] << ' ';cout << '\n'; | ^~~~