#include<iostream> using namespace std; int main(){ /** int n,x,y; int s; scanf("%d" "%d" "%d",&n,&x,&y); if(y%x == 0){ s=n-y/x; }else{ s=n-y/x-1; } if(s<0)cout<<0; else cout<<s; int n,money=0; char y; cin>>n>>y; if(n <= 1000){ money = 8; }else{ if((n-1000)%500 == 0){ money = 8+((n-1000)/500)*4; }else{ money = 8+((n-1000)/500)*4+4; } } if(y=='y'){ cout<<money+5; }else if(y == 'n'){ cout<<money; } int a; cin>>a; if(a % 4 == 0 && a % 2 == 0){ cout<<a/4<<" "<<a/2; }else{ cout<<0<<" "<<0; } int a; cin>>a; switch(a) { case 1: cout<<1; break; case 2: cout<<2; break; case 3: cout<<3; break; default: cout<<"请正确输入"; break; } char a; cin>>a; if(a >= 'A' && a<='Z'){ cout<<"Upper Letter"; }else if(a >= 'a' && a<='z'){ cout<<"Lower Letter"; }else if(a >= '0' && a<='9'){ cout<<"Digital"; }else{ cout<<"other"; } **/ int a; cin>>a; if(a >= 90){ cout<<'A'; }else if(a >= 80 && a < 90){ cout<<'B'; }else if(a >= 70 && a < 80){ cout<<'C'; }else if(a >= 60 && a < 70){ cout<<'D'; }else if(a < 60){ cout<<'E'; } return 0; }