Create 2041.cpp

HDOJ/2041.cpp

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+#include <iostream>
+#include <string>
+#include <vector>
+#include <queue>
+#include <stack>
+#include <algorithm>
+#include <sstream>
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+/// This Contest and Compile does not support C++11.
+//#include <thread>
+//#include <mutex>
+//#include <condition_variable>
+//#include <functional>
+
+using namespace std;
+
+long long yh[42][42];
+long long vv[42];
+
+int main()
+{
+    yh[0][0]=0;
+    for(int i=1;i<=40;i++)
+    {
+        yh[i][0]=1;
+        for(int j=1;j<i;j++)
+        {
+            yh[i][j]=yh[i-1][j-1]+yh[i-1][j];
+        }
+        yh[i][i]=1;
+    }
+
+    int n;
+    cin>>n;
+    for(int i=0;i<n;i++)
+    {
+        int m;
+        cin>>m;
+        if(m==1)
+        {
+            cout<<0<<endl;
+            continue;
+        }
+        --m;
+
+        int a=m/2;
+        int sum=1;
+        for(int j=1;j<=a;j++)
+        {
+            sum+=yh[m-j][j];
+        }
+        cout<<sum<<endl;
+    }
+
+    return 0;
+}