22 lines
510 B
C++
22 lines
510 B
C++
#include <bits/stdc++.h>
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using namespace std;
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const int N = 3010;
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const int INF = 0x3f3f3f3f;
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int s[N], a[N];
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int n, m;
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int mi = INF;
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int main() {
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cin >> n >> m;
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for (int i = 1; i <= n; i++) {
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cin >> a[i]; // 刺痛值
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s[i] = s[i - 1] + a[i]; // 构建一维前缀和
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}
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for (int i = m; i <= n; i++)
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mi = min(mi, s[i] - s[i - m]); // 求定区间和并取最小的一部分
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// 输出最小值
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cout << mi << endl;
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return 0;
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} |