diff --git a/HDOJ/Multi-University Training Contest/2017/Team 5/1006_Richard.cpp b/HDOJ/Multi-University Training Contest/2017/Team 5/1006_Richard.cpp
new file mode 100644
index 0000000..7298730
--- /dev/null
+++ b/HDOJ/Multi-University Training Contest/2017/Team 5/1006_Richard.cpp	
@@ -0,0 +1,38 @@
+#include <cstdio>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+#include <deque>
+#include <queue>
+#include <map>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+int main() {
+    int testcases;
+    cin >> testcases;
+    while (testcases--) {
+        long long n, m;
+        long long ex = 0;
+        cin >> n >> m;
+        if (m < n - 1) {
+            ex = n - m - 1;
+            n = n - ex;
+        }
+        long long emax = n*(n - 1) / 2;
+        long long dec = emax - m;
+        if (dec < 0)
+            dec = 0;
+        long long ans;
+        //cout << "emax=" << emax << endl;
+        //cout << "dec =" << dec << endl;
+        //cout << "ex  =" << ex << endl;
+        if (ex > 0)
+            ans = 2 * dec + n*(n - 1) + n*ex*(ex+n)+ex*(ex+n-1)*(ex+n);
+        else
+            ans = 2 * dec + n*(n - 1);
+        cout << ans << endl;
+    }
+}
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diff --git a/HDOJ/Multi-University Training Contest/2017/Team 5/1011.cpp b/HDOJ/Multi-University Training Contest/2017/Team 5/1011.cpp
new file mode 100644
index 0000000..ede7112
--- /dev/null
+++ b/HDOJ/Multi-University Training Contest/2017/Team 5/1011.cpp	
@@ -0,0 +1,33 @@
+#include <vector>
+#include <cstdio>
+#include <algorithm>
+#include <functional>
+using namespace std;
+
+int main()
+{
+    int t;
+    scanf("%d",&t);
+    while(t--)
+    {
+        int n,k;
+        scanf("%d %d",&n,&k);
+        vector<int> vec;
+        int temp;
+        for(int i=0;i<n;i++)
+        {
+            scanf("%d",&temp);
+            vec.push_back(temp);
+        }
+        sort(vec.begin(),vec.end(),greater<int>());
+        int cnt=1;
+        for(int i=0;i<n-1;i++)
+        {
+            if(vec[i]-vec[i+1]<=k) ++cnt;
+            else break;
+        }
+        printf("%d\n",cnt);
+    }
+
+    return 0;
+}
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