C++ code for day15 (#156)

* factorial in c++

* fibonacci recursion

* c++ code for day14

* C++ solution for day15 added

day15/C++/Pascal_Triangle_By_Recursion.cpp

@@ -0,0 +1,53 @@
+/**
+ * @author: Karthick < karthikn2099@gmail.com >
+ * @github: https://github.com/karthikn2098
+ * @date: 10/01/2018
+ */
+
+#include <bits/stdc++.h>
+using namespace std;
+
+/**
+ * @desc: function to get the pascal triangle number of given row and column...
+ * @param: row , column
+ * @return: pascal number for given row and column.
+ */
+int pascal(int row , int column) {
+
+    if(row == column || column == 0)
+        return 1;
+    return pascal(row - 1 , column - 1) + pascal(row - 1 , column);
+
+}
+
+int main(void) {
+
+    int N;
+
+    cout << "Enter the Number of rows: ";
+    cin >> N;
+
+    cout << endl;
+
+    for(int i = 0 ; i < N ; i++ ) {
+        for(int j = 0 ; j <= i ; j++ ) {
+            cout << pascal(i , j) << " ";
+        }
+        cout << "\n";
+    }
+
+    return 0;
+}
+
+/*
+Sample Input/Output:
+
+        Enter the Number of rows: 5
+
+        1
+        1 1
+        1 2 1
+        1 3 3 1
+        1 4 6 4 1
+
+*/