运行 ID: 23976

Main.cc:82:5: error: redefinition of ‘long long int ct’
 int ct=0;
     ^~
Main.cc:64:5: note: ‘long long int ct’ previously defined here
 int ct=0;
     ^~
Main.cc: In function ‘void dfs(long long int, long long int)’:
Main.cc:86:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(dep==E.size()){
        ~~~^~~~~~~~~~