以下程序中函数f的功能是: 当flag 为1时,进行由小到大排序;当flag 为0时,进行由大到小排序。void f(int b[], int n, int flag){int i, j, t; for (i=0; i<n-1; i++)for (j=i+1; j<n; j++) if(flag b[!]>[j]: b[i]<b[j]) { t=b[i]; b[i]=b[j]; b[j]=t; }}main (){ int a[10]={5,4,3,2,1,6,7,8,9,10}, i; f(&a[2], 5, 0); f(a, 5, 1), for (i=0; i<10; i++)printf("%d,", a[i]);}程序运行后输出结果是( )。
A.1,2,3,4,5,6,7,8,9,10,
B.3,4,5,6,7,2,1,8,9,10,
C.5,4,3,2,1,6,7,8,9,10,
D.10,9,8,7,6,5,4,3,2,1,