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28 lines
650 B
28 lines
650 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 3010;
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int a[N];
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int MIN;
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int main() {
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//滑动窗口思想
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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++) cin >> a[i];
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//第一组m个数
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int sum = 0;
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for (int i = 1; i <= m; i++) sum += a[i];
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MIN = sum;//第一组数的和是默认值
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//滑动窗口,加入下一个数字，减去顶部的数字
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for (int i = m + 1; i <= n; i++) {
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sum = sum + a[i] - a[i - m];
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//不断的取min,找出和的最小值
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MIN = min(MIN, sum);
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}
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//输出最小值
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printf("%d", MIN);
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return 0;
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} |