From 3384d136deecc57d41f23ee11ade74668e564a65 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Sun, 18 Oct 2020 15:58:38 +0800
Subject: [PATCH] =?UTF-8?q?P1164=20=E5=B0=8FA=E7=82=B9=E8=8F=9C?=
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R40041942
---
 problem/P1164/P1164.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 problem/P1164/P1164.cpp

diff --git a/problem/P1164/P1164.cpp b/problem/P1164/P1164.cpp
new file mode 100644
index 00000000..21fafd18
--- /dev/null
+++ b/problem/P1164/P1164.cpp
@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n, m, a[10005], f[10005][10005];
+    cin >> n >> m;
+    for (int i = 1; i <= n; i++) {
+        cin >> a[i];
+    }
+    for (int i = 1; i <= n; i++) {
+        for (int j = 1; j <= m; j++) {
+            if (j == a[i]) {
+                f[i][j] = f[i - 1][j] + 1;
+            }
+            if (j > a[i]) {
+                f[i][j] = f[i - 1][j] + f[i - 1][j - a[i]];
+            }
+            if (j < a[i]) {
+                f[i][j] = f[i - 1][j];
+            }
+        }
+    }
+    cout << f[n][m] << endl;
+    return 0;
+}