Project Euler: http://projecteuler.net/

ProjectEuler/p015_LatticePath.cpp

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+/* Check cf5-opt.vim defs.
+VIM: let g:lcppflags="-std=c++11 -O2 -pthread"
+VIM: let g:wcppflags="/O2 /EHsc /DWIN32"
+*/
+#include <iostream>
+
+/*
+Lattice paths
+Problem 15
+
+Starting in the top left corner of a 2x2 grid, and only being able to move to the right and down, there are exactly 6 routes to the bottom right corner.
+__   _    _       
+  |   |_   |   |   |_    |__ 
+  |     |  |_  |__   |_     |
+
+How many such routes are there through a 20x20 grid?
+
+Solution:
+*/
+
+int main ( void )
+{
+
+	return 0;
+}
+