Question

Within this C program change the input to a file instead of individual input from the user. You must take the input file name on the command line. Be sure to have simple error checking to be sure the file exists and was successfully opened. The input file will have the following format: First line: Number of students Second Line: Number of grades Third Line: Student Names, space delimited Fourth+ Line(s): Grades for all students for one assignment, space delimited. Example: 2 3 Cody Jenny 100 100 90 80 70 60 Your program should be able to handle a file of any reasonable size. (I will not use excessively long student names, but there may be MANY students and grades.) Once the file is inputed and read, run it through the program and produce an output that looks like this Cody Jenny 100 100 90 80 70 60 B B

Here is the program that needs to be reformatted #include int main(){ int m,n,i,j; printf("How many students?"); scanf("%d",&n); printf("How many assignments?"); scanf("%d",&m); char name[n][20]; int marks[n][m]; float grades[n]; char finalgrades[n]; for(i =0;i=90) finalgrades[i] = 'A'; else if(grades[i]>=80) finalgrades[i]= 'B'; else if(grades[i]>=70) finalgrades[i]= 'C'; else if(grades[i]>=60) finalgrades[i]= 'D'; else finalgrades[i]= 'E'; } printf("\n"); for(i=0;i