20141028_KUAS_VisualC++_Exam06

/************************************/
/** 20141028 Exam 06               **/
/** Maker  : Yan                   **/
/** E-Mail : [email protected] **/
/** Date   : 2014/10/28 pm.12:00   **/
/************************************/

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char const *argv[])
{
    FILE *fptr = fopen("input.txt", "r");

    float averages[1000] = {0}; //建立平均值陣列（稍後排序）
    int count[1000] = {0}; //建立每條目之顯示行陣列
    int temp_i = 0; //暫存總共有幾項條目
    for(int i = 0; ; i++)
    {
        char name[5] = {NULL};
        float score1 = 0, score2 = 0;
        fscanf(fptr, "%s %f %f", name, &score1, &score2);
        if((name[0] == NULL) || (score1 == 0) || (score2 == 0))
        {
            temp_i = i;
            break;
        }

        //建立平均值陣列
        float average = (score1 + score2) / 2;
        averages[i] = average;
    }
    //暫時關閉檔案資料流
    fclose(fptr);

    //設定每條目之顯示行陣列（count）
    int counter = 0;
    for(int i = 100; i > 0; i--)
    {
        for(int j = 0; j < temp_i; j++)
        {
            if((i > averages[j]) && (averages[j] >= (i - 1)))
            {
                count[j] = counter;
                counter++;
                continue;
            }
        }
    }

    //以二分排序法排序averages（平均值）陣列
    for(int i = 0; i < temp_i; i++)
    {
        for(int j = i; j < temp_i; j++)
        {
            if(averages[j] > averages[i])
            {
                float temp_average = averages[j];
                averages[j] = averages[i];
                averages[i] = temp_average;
            }
        }
    }

    /*data = 二維字串（長度50）陣列，格式如下
      [Name] [Chinese score] [English score]
      [Name] [Chinese score] [English score]
      [Name] [Chinese score] [English score]
      [Name] [Chinese score] [English score]*/
    char data[1000][3][50];
    fptr = fopen("input.txt", "r"); //再次開啟檔案資料
    //再次進行寫入data 以做後續輸出動作
    for(int i = 0; i < temp_i; i++)
        fscanf(fptr, "%s %s %s", data[count[i]][0], data[count[i]][1], data[count[i]][2]);

    //輸出資料
    for(int i = 0; i < temp_i; i++)
        printf("Name: %s.\n  Chinese score: %s, English score: %s. Score average is: %.1f\n", \
            data[i][0], data[i][1], data[i][2] , averages[i]);

    return 0;
}