c++ - 我正在尝试构建一个程序来计算你的百分比并使用 c++ 给出错误的答案，谁能指导我哪里出错了

Question

#include <iostream>
    
int main(){ 
  int maths,science,english;
  char answer; 
    
  std::cout<<"please enter your marks : \n";
    
  std::cin>>maths;  
  std::cin>>science;  
  std::cin>>english;
       
  double percent;
  percent= (maths+science+english)/300;
        
  std::cout<< "your percentage is :"<<percent<<"\n";
}

标签： c++