P2389 电脑班的裁员

R72132358

Luogu/P2389/P2389.cpp

@@ -0,0 +1,33 @@
+#include <algorithm>
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 505;
+
+int n, k, sum[N], f[N][N];
+
+int main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> n >> k;
+    for (int i = 1; i <= n; i++) {
+        int x;
+        cin >> x;
+        sum[i] = sum[i - 1] + x;
+    }
+
+    for (int i = 1; i <= n; i++) {
+        for (int j = 1; j <= k; j++) {
+            for (int l = j - 1; l <= i; l++) {
+                f[i][j] = std::max({f[i][j], f[i - 1][j], f[l][j - 1] + (sum[i] - sum[l])});
+            }
+        }
+    }
+
+    cout << f[n][k] << endl;
+
+    return 0;
+}