char fun(int score)
{
switch (score / 10)
{
case10:
case 9:
return 'A';
case 8:
return 'B';
case 7:
case 6:
return 'C';
default:
return 'D';
}
}
#include <stdio.h>
char fun (int score)
{
switch (score >= 90)
{
case 1:
return 'A';
break;
case 0:
switch (score >= 80)
{
case 1:
return 'B';
break;
case 0:
switch (score >= 60)
{
case 1:
return 'C';
break;
case 0:
return 'D';
break;
}
break;
}
break;
}
}
void main()
{
int score;
char p;
scanf("%d", &score);
p=fun(score);
printf("%c\n", p);
}