3269 - 习题4-8-2 百分制成绩转换为等级

73

B

Solution C

#include<stdio.h>
int main ()
{
  int a,b;
  scanf("%d",&a);
  b=a/10;
  switch(b)
  {
    case 10:
    case 9: printf("A");break;
    case 8:
    case 7: printf("B");break;
    case 6: printf("C");break;
    default:printf("D");
  }
  return 0;
}
    
      
      

Solution C++

#include<iostream>
using namespace std;
int main()
{
	int score;
	cin>>score;
	int t=score/5;
	char c;
	switch (t)
	{
		case 0:
		case 1:
		case 2:
		case 3:
		case 4:
		case 5:
		case 6:
		case 7:
		case 8:
		case 9:
		case 10:
		case 11: c='D';	break;
		case 12:
		case 13: c='C';	break;
		case 14:
		case 15:
		case 16: c='B';	break;
		case 17:
		case 18:
		case 19:
		case 20: c='A';	break;
	}
	cout<<c<<endl;
	return 0;
}