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/* *  lab10q1.c *   * *  Created by Cristian Hancila on 15/04/07. *  Copyright 2007 __MyCompanyName__. All rights reserved. * */#include <stdio.h>#include <stdlib.h>#include <string.h>typedef struct {	char last_name[25];	int std_no;	char major[15];	int numCourses;	char course_nums[8][7];	int course_marks[8];} student;float studentAvarage(student s);int input_students(student ** s){	int count=0;	int n=0;	FILE * fp;	s=malloc(sizeof(student *) * 25);		fp=fopen("lab10.students.data.txt","r");		while(!feof(fp)) { 		s[n]=malloc(sizeof(student));		char c[15];		fscanf(fp,"%s",s[n]->last_name);		//fscanf(fp,"%s",c);		printf("%s\n",s[n]->last_name);		fscanf(fp,"%d",&(s[n]->std_no));		fscanf(fp,"%s",s[n]->major);		fscanf(fp,"%d",&(s[n]->numCourses));		int z = 0;		for(z=0;z<s[n]->numCourses;z++){			fscanf(fp,"%s %d",s[n]->course_nums[z],&s[n]->course_marks[z]);		}		n++;		count++;	}	printf("end of func call %s\n",s[0]->last_name);	output_students(s,count);	fclose(fp);	return count;}void output_students(student ** s,int count){	int n=0;	printf("\n Format:\n Last Name | Student Number | Major\n Course - Mark\n");		for(n=0;n<count-1;n++){		printf("%-15s %d      %s\n\n",s[n]->last_name,s[n]->std_no,s[n]->major);			int z;		for(z=0;z<s[n]->numCourses;z++){			printf("                %s   %d\n",s[n]->course_nums[z],s[n]->course_marks[z]);		}		printf("\n");	}}void majorAvarage(student s[], int count){	FILE * fp;	char major[15];	int n = 0;	int c=0;	float msum=0;	fp = fopen("lab10.majors.data.txt","r");	do{		fscanf(fp,"%s",major);		msum=0;		c=0;		for(n=0;n<count-1;n++){			//printf("%s %s\n",major,s[n].major);			if(strncmp(major,s[n].major,15)==0){				msum+=studentAvarage(s[n]);				c++;			}		}		if (c==0) c=1;		msum=msum/c;		printf("For major %s, avarage of %d students is %2.1f\n",major,c,msum);	}while (!feof(fp));		fclose(fp);} float studentAvarage(student s){	int n =0;	float sum=0;	for (n=0;n<s.numCourses;n++){		sum+=(float)s.course_marks[n];	}	float ret = sum/s.numCourses;	printf("    %s's Avarage: %5.1f\n",s.last_name,ret);	return ret;}int main(){	int count;	student ** list;	count=input_students(list);	printf("%s\n",list[0]->last_name);	//output_students(list,count);	//majorAvarage(list,count);	return 1;}