diff --git a/HDOJ/1398_cnblogs.cpp b/HDOJ/1398_cnblogs.cpp
new file mode 100644
index 0000000..3c489d4
--- /dev/null
+++ b/HDOJ/1398_cnblogs.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+#include <cstdlib>
+#include <cstring>
+#include <cmath>
+using namespace std;
+
+const int M = 300 + 10;
+
+int dp[M];
+
+int main()
+{
+    int n;
+    while (~scanf("%d", &n), n)
+    {
+
+        memset(dp, 0, sizeof(dp));
+        dp[0] = 1;
+
+        int max = (int)sqrt(n * 1.0);
+        for (int i = 1; i <= max; i++)
+        {
+            for (int j = i * i; j <= n; j++)
+            {
+                dp[j] += dp[j - i * i];
+            }
+        }
+
+        printf("%d\n", dp[n]);
+    }
+    return 0;
+}