Problem 2: Read Class Data from a File and Sort (50 points) The file ClassData10

Question

Problem 2: Read Class Data from a File and Sort (50 points) The file ClassData10.txt contains grade information for 10 fictitious students. The file format is » Student Name . 12 Reading Assignment Scores 8 Homework Scores Scores for in-class participation, midterm 1, midterm 2, and the final project Using an array of type student info, write a C program that 1. Reads the file information into a 10 element array of type student info. Make sure you update the structure student info from problem 1 to accept 12 reading assignments and 8 homework scores 2. Calculates the final grades for all 10 students 3. Print the final scores in order, from highest to lowest. The following functions will sort an array of type int. Modify these functions to use variables of type student info Your program must make use of the following functions » void Print Student (student_info X); » void Scan_Student_Info (student_info *S, FILE *fp); int i, void selection (int x], int size I/ selection sort int maxi for (i -0

Explanation / Answer

Solution:

code:

#include "stdio.h"

#include <string.h>

struct student_info {

char name[50];

int zybooks[12];

int homework[8];

int inclass;

int midterm[2];

int project;

int totalmarks;

float percentage;

};

void swap (int *x, int *y) {

int temp;

temp = *x;

*x=*y;

*y=temp;

}

void selection(int x[], int size) { //selection sort

int i,j;

int min;

  

for (i=0; i < size; i++) {

min=i; // start searching from currently unsorted

for (j = i; j<size; j++) {

if (x[j] > x[min]) // if found a smaller element

min = j; // move it to the front

}

swap(&x[i], &x[min]);

}

}

int stringtoint(char num[100]) {

int dec = 0, i, j, len;

len = strlen(num);

for(i=0; i<len; i++){

dec = dec * 10 + ( num[i] - '0' );

}

return dec;

}

void main() {

FILE *fp;

char temp[255];

int i;

int totalmarkslist[10];

int sum;

struct student_info studarray[10];

sum=0;

fp = fopen("test.txt", "r");

for (i=0;i<10;i++) {

fscanf(fp, "%s", studarray[i].name);

//studarray[i].name=temp;

printf("%s",studarray[i].name);

int j;

for (j=0;j<12;j++) {

fscanf(fp, "%s", temp);

studarray[i].zybooks[j]=stringtoint(temp);

sum=sum+stringtoint(temp);

}

  

int k;

for (k=0;k<8;k++) {

fscanf(fp, "%s", temp);

studarray[i].homework[k]=stringtoint(temp);

sum=sum+stringtoint(temp);

}

  

fscanf(fp, "%s", temp);

studarray[i].inclass=stringtoint(temp);

sum=sum+stringtoint(temp);

  

int l;

for (l=0;k<2;k++) {

fscanf(fp, "%s", temp);

studarray[i].homework[l]=stringtoint(temp);

sum=sum+stringtoint(temp);

}

  

fscanf(fp, "%s", temp);

studarray[i].project=stringtoint(temp);

sum=sum+stringtoint(temp);

  

studarray[i].percentage=sum/1241;

totalmarkslist[i]=sum;

}

fclose(fp);

  

selection(totalmarkslist,10);

  

int m;

for (m=0;m<10;m++) {

int n;

for (n=0;n<10;n++) {

if(totalmarkslist[m]==studarray[n].totalmarks) {

printf("Grads information for %s",&studarray[n].name," ");

printf("zybooks Scores = [");

int p;

for(p = 0; p < 12; p++)

printf("%d, ", &studarray[n].zybooks[p]);

printf("] ");

printf("Homework Scores = [");

for(p = 0; p < 8; p++)

printf("%d, ", &studarray[n].homework[p]);

printf("] ");

printf("In-class Participation Scores = %d", &studarray[n].inclass );

printf("] ");

printf("Midterm Scores = [");

for(p = 0; p < 2; p++)

printf("%d, ", &studarray[n].midterm[p]);

printf("] ");

printf("Final project Score = %d", &studarray[n].project );

printf("Calculated Percentage = %f", &studarray[n].percentage );

if (studarray[n].percentage>90) {

printf("The Final Grade for Sarah is = A");

} else {

printf("The Final Grade for Sarah is = B");

}

}

}

}

};

I hope this helps if you find any problem. Please comment below. Don't forget to give a thumbs up if you liked it. :)

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