运行 ID: 33595

Main.cc: In function ‘int main()’:
Main.cc:6:7: error: expected initializer before ‘==’ token
  int i==0;
       ^~
Main.cc:8:8: error: ‘i’ was not declared in this scope
  while(i<=n){
        ^
Main.cc:12:15: error: ‘setprecision’ was not declared in this scope
  cout<