编辑代码

#include <iostream>
using namespace std;
int main() {
    float t,n;
    int k;
    cin>>n;
    k=n/1000;
    switch(k)
    { 
     case 0:
      t=n;
      cout<<t<<endl;
      break;
     case 1:
      t=n-n*(1/10);
      cout<<t<<endl;
      break;
     case 2:
      t=n-n*(15/100);
      cout<<t<<endl;
      break;
     case 3:
      t=n-n*(2/10);
      cout<<t<<endl;
      break;
     case 4:
      t=n-n*(25/100);
      cout<<t<<endl;
      break;    
      default:
      t=n-n*(25/100);
      cout<<t<<endl;  
    }
	return 0;
}