标签:compare shell bsp com until int rom cond shel
void Insertsort(int a[], int n)
{
int i, j;
int Tmp;
for (i = 1; i < n; i++)//from the second element
for (j = i - 1; j >= 0 && a[j] > a[j + 1]; j--){ //from the i-1 begin to compare until the first element
Tmp = a[j];
a[j] = a[j + 1];
a[j + 1] = Tmp;
}
}
//The time complexity of the insertion sort is O(N2).
void shellsort(int a[], int n)
{
int i, j, gap;
int Tmp;
for (gap = n / 2; gap > 0; gap /= 2)// an additional loop here
for (i = gap; i < n; i++)
for (j = i - gap; j >= 0 && a[j] > a[j + gap]; j -= gap){
Tmp = a[j];
a[j] = a[j + gap];
a[j + gap] = Tmp;
}//modify the "1" to "gap"
}
//The insertion sort is the special situation in which the gap is 1
标签:compare shell bsp com until int rom cond shel
原文地址:http://www.cnblogs.com/Vincent-Zy/p/6193346.html