25 lines
506 B
C++
25 lines
506 B
C++
#include <iostream>
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#include <cstdio>
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#include <algorithm>
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using namespace std;
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int main()
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{
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int N,array[1050];
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while(~scanf("%d",&N))
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{
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int sum = 0;
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for(int i = 0; i < N; i++)
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{
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scanf("%d",&array[i]);
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sum += array[i];
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}
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sort(array,array+N);
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double aver = (double)sum/N;
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if(aver >= (double)array[(N-1)/2])
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printf("NO\n");
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else
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printf("YES\n");
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}
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return 0;
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}
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