//samp.c
#include<stdio.h>
#include<stdlib.h>
typedef struct {
   long id;
   char name[9];
   float height;
   double score;
   int rank;  // 名次
} Student;
Student x[999];
int getData( );
void printData(int n, int flag);
void sort( ) { }
int main( ) {
   int nStu;
   nStu = getData( );
   printData(nStu, 0);
   printf("=== ===\n");
   sort( );
   printData(nStu, 1);
   return 0;
}
int getData( ){
   static char cn[ ][3]={ "趙", "錢", "孫", "李", "陳", "林"};
   static char first[ ][5]= {
      "阿三", "小弟", "三8", "4久", "小五", "阿水", "大華" };
   int cnLen = (sizeof(cn) / sizeof(cn[0]) );
   int firstLen =(sizeof(first) / sizeof(first[0]) );
   int i, k, n;
   long baseID = 9817000;
   k = 5;  // example
   for(i=1; i<= k; ++i) {  // 第 0 個故意不用
      x[i].id = baseID + i;
      n = rand( ) % cnLen;
      strcpy(x[i].name, cn[n]);
      n = rand( ) % firstLen;
      strcat(x[i].name, first[n]);
   }
   return k;
}
void printData(int n, int flag){
    //印出 n 個人的 data, x[1] .. x[n]; 注意第 0 個故意不用
   // flag == 0 表示不印名次
   int i;
   for(i=1; i<=n; ++i) {
      printf("%ld ", x[i].id);
      printf("%9s ", x[i].name);
      if(flag!=0) printf(" %3d", x[i].rank);
      printf("\n");
   }
}