From 614a605e813060eaed5f0619e1f89f707a3fc913 Mon Sep 17 00:00:00 2001
From: Baoshuo <i@baoshuo.ren>
Date: Sun, 3 Jul 2022 16:38:32 +0800
Subject: [PATCH] =?UTF-8?q?P1441=20=E7=A0=9D=E7=A0=81=E7=A7=B0=E9=87=8D?=
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https://www.luogu.com.cn/record/78343607
---
 Luogu/P1441/P1441.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Luogu/P1441/P1441.cpp

diff --git a/Luogu/P1441/P1441.cpp b/Luogu/P1441/P1441.cpp
new file mode 100644
index 00000000..ccd4a1b6
--- /dev/null
+++ b/Luogu/P1441/P1441.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+#include <bitset>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 20;
+
+int n, m, a[N], ans;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n >> m;
+
+    for (int i = 0; i < n; i++) {
+        cin >> a[i];
+    }
+
+    for (int i = 0; i < 1 << n; i++) {
+        if (__builtin_popcount(i) == n - m) {
+            std::bitset<2005> s;
+            s[0] = 1;
+
+            for (int j = 0; j < n; j++) {
+                if (i & (1 << j)) {
+                    s |= s << a[j];
+                }
+            }
+
+            ans = std::max(ans, (int)s.count());
+        }
+    }
+
+    cout << ans - 1 << endl;
+
+    return 0;
+}