#include "stdio.h"int main(){int a[5]={2,4,6,8};int x,i=0,j=0;printf("请输入一个数:");scanf("%d",&x);for(i=0;i<=3;i++) {if (x>a[i]) {a[i+1]=a[i+2]; a[i+1]=x;} else {a[i+1]=a[i]; a[i]=x; } } for(i=0;i<=5;i++) {printf("%d ",a[i]); } return 0; }