diff --git a/HDOJ/1003_XXXX.cpp b/HDOJ/1003_XXXX.cpp
new file mode 100644
index 0000000..5f6de0f
--- /dev/null
+++ b/HDOJ/1003_XXXX.cpp
@@ -0,0 +1,50 @@
+#include <cstdio>
+using namespace std;
+#define MAXN 100005
+
+typedef struct{ int s, l, r; }Sum;
+
+Sum MaxSub(int a[], int n);
+
+int main(void)
+{
+    int ar[MAXN], c, n, i, j;
+    Sum x = {0, 0, 0};
+    scanf("%d", &c);
+    for(i = 1; i <= c; i++)
+    {
+        scanf("%d", &n);
+        for(j = 1; j <= n; j++)
+            scanf("%d", &ar[j]);
+        x = MaxSub(ar, n);
+        printf("Case %d:\n%d %d %d", i,x.s, x.l, x.r);
+        if(i != c) printf("\n\n");
+        else printf("\n");
+    }
+}
+
+Sum MaxSub(int a[], int n)
+{
+    int i, s = 0, l = 1, r = 1, b;
+    Sum sum = {a[1], 0, 0};
+    for(i = 1; i <= n; i++)
+    {
+        if(s >= 0)
+        {
+            s += a[i];
+            if(a[i] > 0) r = i;
+        }
+        else
+        {
+            s = a[i];
+            r = l = i;
+        }
+        if(s >= sum.s)
+        {
+            sum.s = s;
+            sum.l = l;
+            sum.r = r;
+        }
+    }
+    return sum;
+}