无名 2

#include<bits/stdc++.h> int main() { int a[102]={0,6,3,1,7,5,8,9,2,4},head,tail; int i; head=1; tail=10; while(head<tail) { printf("%d ",a[head]); head++; a[tail]=a[head]; tail++; head++; } return 0; }