以下程序的功能：用简单选择法对10个整数按降序排序，请填空。#include#defineN10intmain(){inti,j,k,t,a[N];for(i=0;i<=N-1;i++)scanf("%d",&a[i]);for(i=0;ia[k])k=j;if(_________){t=a[i];a[i]=a[k];a[k]=t;}}printf("outputthesortedarray:\n");for(i=0;i<=N-1;i++)printf("%5d",a[i]);printf("\n");return0;}