Merge pull request neetcode-gh#1480 from PritomKarmokar/cpp-solution-pascals-triangle

Adding 118-Pascals-Triangle.cpp

Author: Ahmad-A0

cpp/118-Pascals-Triangle.cpp

@@ -0,0 +1,17 @@
+class Solution {
+public:
+    vector<vector<int>> generate(int numRows)
+    {
+        vector<vector<int>> ret;
+
+        for(int i = 0; i < numRows ; i++){
+            vector<int> row(i+1, 1);
+            for(int j = 1; j < i ; j++){
+                row[j] = ret[i-1][j] + ret[i-1][j-1];
+            }
+            ret.push_back(row);
+        }
+
+        return ret;
+    }
+};