diff --git a/00lanqiao chap/test100-1-4.cpp b/00lanqiao chap/test100-1-4.cpp
new file mode 100644
index 0000000..d0aa9f1
--- /dev/null
+++ b/00lanqiao chap/test100-1-4.cpp	
@@ -0,0 +1,19 @@
+// lanqiao 1175 小明的背包2(完全背包)
+#include <bits/stdc++.h>
+using namespace std;
+const int N = 1e3 + 10;
+int dp[N];
+int main()
+{
+  // 请在此输入您的代码
+  ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
+  int n, m; cin >> n >> m;
+  for(int i = 1; i <= n; i++){
+    int w, v; cin >> w >> v;
+    for(int j = w; j <= m; j++){
+      dp[j] = max(dp[j], dp[j-w] + v);
+    }
+  }
+  cout << dp[m] << '\n';
+  return 0;
+}
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