Compilare: main.cpp: In function 'void dfs2(int)': main.cpp:100:42: warning: narrowing conversion of '- dp[nod]' from 'i64' {aka 'long long int'} to 'int' [-Wnarrowing] 100 | cht[head[nod]].insert({ depth[nod] , -dp[nod] }); | ^~~~~~~~ main.cpp:105:19: warning: unused variable 'cost' [-Wunused-variable] 105 | const int cost=c.cost; | ^~~~ main.cpp: At global scope: main.cpp:129:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 129 | main() | ^~~~