lvl 3.2 the-grandest-staircase-of-them-all.ipynb

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      "2 487067745\n"
     ]
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   "source": [
    "def solution(n):\n",
    "\n",
    "    staircase = [1] + [0]* n\n",
    "\n",
    "    for i in range(1, n+1):\n",
    "        for j in range(n, i-1, -1):\n",
    "            staircase[j] += staircase[j-i]\n",
    "    return staircase[n] - 1\n",
    "print solution(5), solution(200)"
   ]
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