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#include <stdio.h>
int main()
{
int score;
char grade;
printf("Please input score:");
scanf("%d",&score);
if(score<0 || score>100){
printf("Input error!\n");
return 0;
}
else if(score >= 90)
grade = 'A';
else if(score >= 80)
grade = 'B';
else if(score >= 70)
grade = 'C';
else if(score >= 60)
grade = 'D';
else
grade = 'E';
printf("grade:%c\n",grade);
return 0;
}
#include <stdio.h>
int main()
{
int score;
char grade;
printf("Please input score:");
scanf("%d",&score);
if(score<0 || score>100)
grade = 'F';//printf("Input error!\n");
else if(score >= 90)
grade = 'A';
else if(score >= 80)
grade = 'B';
else if(score >= 70)
grade = 'C';
else if(score >= 60)
grade = 'D';
else
grade = 'E';
if(grade == 'F')
printf("Input error!\n");
else
printf("grade:%c\n",grade);
return 0;
}