23 lines
444 B
C++
23 lines
444 B
C++
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#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 a[N];
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int mi = INF;
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int main() {
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int n, m;
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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];
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for (int i = 1; i <= n - m + 1; i++) {
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int sum = 0;
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for (int j = 0; j < m; j++)
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sum += a[i + j];
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mi = min(mi, sum);
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}
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cout << mi << endl;
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return 0;
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}
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