1304吃糖果

 1 #include<iostream>
 2 #include<cstdio>
 3 #include<string>
 4 #include<cstring>
 5 #include<set>
 6 #include<map>
 7 #include<algorithm>
 8 #include<cstdlib>
 9 #include<vector>
10 #include<cmath>
11 #include<sstream>
12 using namespace std;
13 int main()
14 {
15     int N;
16     while(scanf("%d", &N) != EOF)
17     {
18         int sum = 0;
19         int ans = 0;
20         for(int i = 0; i < N; ++i)
21         {
22             int x;
23             scanf("%d", &x);
24             ans = max(ans, x);
25             sum += x;
26         }
27         if(ans - 1 > sum - ans)
28             printf("No\n");
29         else printf("Yes\n");
30     }
31     return 0;
32 }