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29 lines
678 B
29 lines
678 B
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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//cin读入优化
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std::ios::sync_with_stdio(false);
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//输入+输出重定向
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freopen("../number.in", "r", stdin);
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freopen("../number.out", "w", stdout);
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int n;
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cin >> n;
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vector<int> a(n + 1, 0);
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for (int i = 1; i <= n; i++) {
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cin >> a[i];
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}
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sort(a.begin() + 1, a.end());
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//两两对比，找最大值
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int maxx = -1;
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for (int i = 1; i <= n / 2; i++) {
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if (a[i] + a[n - i + 1] > maxx) maxx = a[i] + a[n - i + 1];
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}
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cout << maxx << endl;
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//关闭文件
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fclose(stdin);
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fclose(stdout);
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return 0;
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} |