void quick_sort(struct student *students, int low, int high)
{
int index_low, index_high;
if (low < high)
{
for (index_low = low, index_high = high; index_low <= index_high;)
{
if (students[index_low].score >= students[low].score)
index_low++;
else if (students[index_high].score < students[low].score)
index_high--;
else
{
swapstr(students, index_low, index_high);
swap_score(students, index_low, index_high);
}
}
if (students[index_high].score > students[low].score)
{
swapstr(students, index_high, low);
swap_score(students, index_high, low);
}
quick_sort(students, low, index_high - 1);
quick_sort(students, index_high + 1, high);
}
}
void strswap(void)
{
int times = 0x10,i;
for(i = 0; i < times;i++) {
prints(" .....before.....\n");
prints(" str1=%s\n str2=%s\n", str1, str2);
swapstr(str1, str2);
prints(" .....after.....\n");
prints(" str1=%s\n str2=%s\n", str1, str2);
}
}
