Codeforces Round #431 (Div. 2) A

题目：http://codeforces.com/contest/849/problem/A
题意：
代码：

#include <bits/stdc++.h>using namespace std;int a[105];int ans;int main(){    int n;    scanf("%d",&n);    for(int i = 1; i <= n; i ++)        scanf("%d",&a[i]);    if(n % 2 == 0)        printf("No\n");    else    {        if(a[1]%2==0 || a[n]%2==0)            printf("No\n");        else            printf("Yes\n");    }    return 0;}