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20 lines
467 B
20 lines
467 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 200100;
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int n, a[N], s[N], ans[N];
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int main() {
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cin >> n;
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for (int i = 1; i <= n; i++)
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cin >> a[i], s[i] = s[i - 1] + a[i]; // 前缀和
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int mi = 0;
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for (int i = 1; i <= n; i++) {
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ans[i] = s[i] - mi;
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mi = min(mi, s[i]);
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}
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int res = INT_MIN;
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for (int i = 1; i <= n; i++) res = max(res, ans[i]);
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cout << res << endl;
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return 0;
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} |