/**
* Copyright (c) 2001,2002 Yoon, Hyunho <hhyoon@kldp.org>
* http://mooo.org
* ----------------------------------------------------------------------
*
* LICENSE
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define STR_MAX 81
#define NUM_MAX 10
/* 구조체 정의 */
typedef struct student
{ char name[STR_MAX];
int number;
int kor;
int eng;
int math;
int music;
int computer;
int total;
float average;
} Student;
/* 함수 원형 선언 */
void input(Student *man, int num);
void sort(Student *man, int num);
void print(Student *man, int num);
int finput(Student *man);
int finputb(Student *man);
void fprintb(Student *man, int num);
/* 메인 함수 */
int main()
{ int num;
Student man[NUM_MAX];
num = finputb(man);
print(man, num);
sort(man, num);
print(man, num);
fprintb(man, num);
return 0;
}/* 함수 input() */
void input(Student *man, int num)
{ int i;
for (i = 0; i < num; i++) {
printf("%d번째 학생 정보 입력해!\n", i + 1);
printf("이름: ");
flushall();
fgets(man[i].name, STR_MAX, stdin);
printf("학번: ");
fscanf(stdin, "%d", &man[i].number);
printf("국어: ");
fscanf(stdin, "%d", &man[i].kor);
printf("영어: ");
fscanf(stdin, "%d", &man[i].eng);
printf("수학: ");
fscanf(stdin, "%d", &man[i].math);
printf("음악: ");
fscanf(stdin, "%d", &man[i].music);
printf("바보: ");
fscanf(stdin, "%d", &man[i].computer);
man[i].total = man[i].kor + man[i].eng + man[i].math + man[i].music + man[i].computer;
man[i].average = (float) man[i].total / 5;
}
}/* 함수 sort() */
void sort(Student *man, int num)
{ int i, j;
Student temp;
for (i = 0; i < num - 1; i++) {
for (j = 0; j < num - 1; j++) {
if (man[j].total < man[j + 1].total) {
temp = man[j];
man[j] = man[j + 1];
man[j + 1] = temp;
}
}
}
}/* 함수 print() */
void print(Student *man, int num)
{ int i;
for (i = 0; i < num; i++) {
printf("%s\t", man[i].name);
printf("%10d", man[i].number);
printf("%5d", man[i].kor);
printf("%5d", man[i].eng);
printf("%5d", man[i].math);
printf("%5d", man[i].music);
printf("%5d", man[i].computer);
printf("%7d", man[i].total);
printf("%7.2f\n", man[i].average);
}
printf("\n");
}void fprintb(Student *man, int num)
{ FILE *fp;
if ((fp = fopen("datab.txt", "wb")) == NULL) {
printf("Error! Could not open the file..\n");
exit(1);
}
fwrite(&num, sizeof(int), 1, fp);
fwrite(man, sizeof(Student), num, fp);
fclose(fp);
}/* 함수 finput() */
int finput(Student *man)
{ int i, num, ch;
char *newline;
FILE *fp;
if ((fp = fopen("data.txt", "r")) == NULL) {
printf("Cannot open the file..\n");
exit(1);
}
fscanf(fp, "%d", &num);
for (i = 0; i < num; i++) {
ch = fgetc(fp);
fgets(man[i].name, STR_MAX, fp);
newline = strstr(man[i].name, "\n");
*newline = 0;
fscanf(fp, "%d", &man[i].number);
fscanf(fp, "%d", &man[i].kor);
fscanf(fp, "%d", &man[i].eng);
fscanf(fp, "%d", &man[i].math);
fscanf(fp, "%d", &man[i].music);
fscanf(fp, "%d", &man[i].computer);
man[i].total = man[i].kor + man[i].eng + man[i].math + man[i].music + man[i].computer;
man[i].average = (float) man[i].total / 5;
}
fclose(fp);
return num;
}/* 함수 finput() */
int finputb(Student *man)
{ int num;
FILE *fp;
if ((fp = fopen("datab.txt", "rb")) == NULL) {
printf("Cannot open the file..\n");
exit(1);
}
fread(&num, sizeof(int), 1, fp);
fread(man, sizeof(Student), num, fp);
fclose(fp);
return num;
}