2018/5/14程式作業 第5題 for 四子一丙

第5題

#include
#include
int main(void)
{
 int score[500] = {0}, sum = 0;
 int i = 0;
 int range[6] = {0,0,0,0,0,0};
    for(i = 0;score[i-1] != 999 ; i++)
    {   
     
        scanf("%d", &score[i]);
     while((score[i] < 0) || (score[i] > 100) && (score[i] != 999))
     {    
     if((score[i] < 0) || (score[i] > 100 && (score[i] != 999))) 
     {
      printf("請重新輸入\n");
   scanf("%d", &score[i]);
     }     
  }
  sum += score[i];
 }
 
 sum -= 999; 
 sum /= (i - 1);
 
 printf("全班國文總平均為%d分\n",sum);
 
 for(i = 0 ;score[i] != 999 ; i++)
 {
   if(score[i] >= 0 && score[i] <= 59)
   range[0]++;
   else if(score[i] >= 60 && score[i] <= 69)
   range[1]++;
          else if(score[i] >= 70 && score[i] <= 79)
   range[2]++;
   else if(score[i] >= 80 && score[i] <= 89)
   range[3]++;
   else if(score[i] >= 90 && score[i] <= 99)
   range[4]++;
   else if(score[i] == 100)
   range[5]++;
 }
 printf(" 0～59分 %d 位學生\n",range[0]);
 printf("60～69分 %d 位學生\n",range[1]);
 printf("70～79分 %d 位學生\n",range[2]);
 printf("80～89分 %d 位學生\n",range[3]);
 printf("90～99分 %d 位學生\n",range[4]);
 printf("   100分 %d 位學生\n",range[5]); 
 
 system("pause"); return(0);
}