#include <stdio.h>
int main(int argc, char const *argv[])
{
    int b,score;
    printf("你的成绩  ");
    scanf("%f", &b);
    if(score>=0||score<=100){
    	 printf("请输入0-100的数值");
   }else{
   	b=score/10;
   	if (b >=9){
	        printf("A\n");
	    }else if (b ==8){
	        printf("B\n");
	    }else if (b==7) {
	        printf("C\n");
	    }else if(b==6){
	        printf("D\n");
	    }else{
	    	printf("E\n");
	    }
   }
    return 0;
}

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ODI=

82