运行 ID: 30424

Main.cc: In function ‘int main()’:
Main.cc:27:7: error: ‘itn’ was not declared in this scope
   for(itn j=1;j<=pow(2,m);j++){
       ^~~
Main.cc:27:15: error: ‘j’ was not declared in this scope
   for(itn j=1;j<=pow(2,m);j++){
               ^