CCF认证 201903-1 小中大

#include <iostream>
#include <algorithm>
using namespace std;
const int maxn = 1e5+10;
int A[maxn];
int main()
{
    int n;
    scanf("%d",&n);
    for(int i=0;i<n;i++)
        scanf("%d",&A[i]);
    if(A[0]<A[n-1]) swap(A[0],A[n-1]);
    printf("%d ",A[0]);
    if(n%2){
        printf("%d",A[n/2]);
    }
    else{
        if((A[n/2]+A[n/2-1])%2==0) 
            printf("%d",(A[n/2]+A[n/2-1])/2);
        else
            printf("%.1f",(double)(A[n/2]+A[n/2-1])/2.0);
    } 
    printf(" %d",A[n-1]);
    return 0;

}

标签：std,10,include,小中大,int,maxn,201903,CCF
来源： https://blog.csdn.net/qq_40597059/article/details/102731106