2004

打印成绩

#include <stdio.h>

int main()
{
    int grade;
    while(scanf("%d",&grade) != EOF)
    {
        switch(grade /10)
        {
            case 9:
            case 10:
                printf("%c
",'A');break;
            case 8:
                printf("%c
",'B');break;
            case 7:
                printf("%c
",'C');break;
            case 6:
                printf("%c
",'D');break;
            case 5:
            case 4:
            case 3:
            case 2:
            case 1:
            case 0:
                printf("%c
",'E');break;
            default:
                printf("Score is error!
");
        }
    }
    return 0;
}

参考c++

#include <math.h>
#include <stdio.h>

int main(void)
{
    int r;

    while (scanf("%d", &r) != EOF)
    {
        if (r < 0)
            puts("Score is error!");
        else if (r < 60)
            puts("E");
        else if (r < 70)
            puts("D");
        else if (r < 80)
            puts("C");
        else if (r < 90)
            puts("B");
        else if (r < 101)
            puts("A");
        else
            puts("Score is error!");
    }

    return 0;
}