Thursday, February 12, 2009

Exercise5






#include
#include


void main()
{ clrscr();
float grade,average,sum;
int a=0;

while(grade!=-1)
{ sum=sum+grade;
printf("\n\n");
printf("\nEnter grade; -1 to exit");
scanf("%f",&grade);

if(grade==-1)
{printf("\n\n\n\t\t\t");
printf("\n\t\t\tAverage is %.2f\n",average=sum/a);}
a++;
}
if(average>=95 && average<=100){ printf("\n\nRated of this average: A");} else if(average>=90 && average<=94){ printf("\n\nRated of this average: B");} else if(average>=89 && average<=90){ printf("\n\nRated of this average: C");} getch(); }

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