Enter a hundred score T to convert it to the corresponding level the input data has multiple groups, one row for each group, and an integer.

I. Requirements

The specific conversion rules are as follows: 90~100 is A; 80~89 is b; 70~79 is C; 60~69 is D; 0~59 is E;

The input data has multiple groups, one row for each group, and an integer.

For each set of input data, output one row. If the input data is not in the 0~100 range, output one line: "Score is error!".

Second, code implementation

#include <stdio.h>
int main ()
{
    int score;
    while (~SCANF ("%d", &score))
    {
        if (score>=90&&score<=100)
            printf ("a\n");
        if (score>=80&&score<90)
            printf ("b\n");
        if (score>=70&&score<80)
            printf ("c\n");
        if (score>=60&&score<70)
            printf ("d\n");
        if (score>=0&&score<60)
            printf ("e\n");
        if (score<0| | score>100)
            printf ("Score is error!\n");
    }
    return 0;
}