| """ | |
| $ cat /proc/cpuinfo | |
| processor : 0 | |
| vendor_id : GenuineIntel | |
| cpu family : 6 | |
| model : 61 | |
| model name : Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz | |
| stepping : 4 | |
| microcode : 0x1f | |
| cpu MHz : 905.705 |
| import asyncio | |
| from aiohttp import web | |
| async def long_running_task(req): | |
| await asyncio.sleep(10) | |
| print('%s Done' % req) | |
| async def long_running_with_future(req, fut): |
| def solution(H): | |
| """ | |
| :param H: | |
| :return: | |
| H[0] = 8 H[1] = 8 H[2] = 5 | |
| H[3] = 7 H[4] = 9 H[5] = 8 | |
| H[6] = 7 H[7] = 4 H[8] = 8 |
| def solution(S, P, Q): | |
| """ | |
| :param S: | |
| :param P: | |
| :param Q: | |
| :return: | |
| >>> solution('CAGCCTA', [2, 5, 0], [4, 5, 6]) | |
| [2, 4, 1] |
| ''' | |
| A DNA sequence can be represented as a string consisting of the letters A, C, G and T, which correspond to the types of successive nucleotides in the sequence. Each nucleotide has an impact factor, which is an integer. Nucleotides of types A, C, G and T have impact factors of 1, 2, 3 and 4, respectively. You are going to answer several queries of the form: What is the minimal impact factor of nucleotides contained in a particular part of the given DNA sequence? | |
| The DNA sequence is given as a non-empty string S = S[0]S[1]...S[N-1] consisting of N characters. There are M queries, which are given in non-empty arrays P and Q, each consisting of M integers. The K-th query (0 ≤ K < M) requires you to find the minimal impact factor of nucleotides contained in the DNA sequence between positions P[K] and Q[K] (inclusive). | |
| For example, consider string S = CAGCCTA and arrays P, Q such that: | |
| P[0] = 2 Q[0] = 4 | |
| P[1] = 5 Q[1] = 5 | |
| P[2] = 0 Q[2] = 6 |
A startup is not unlike a hero's journey; there's a vision or goal, and a journey filled with obstacles. Just as the hero's story has archetypal patterns, successful startups share the same outline. I.e., there is a true and repeatable path that eliminates or mitigates the most egregious risks and allows the company to grow into a large, successful enterprise. Not only that, but the successful path is nearly completely different from traditional "Product Development" processes and methodologies; Steve Blank calls this path "Customer Development". This book describes the "Customer Development" model.
Essentially, the criteria for success is simple: products developed with constant contact with customers win; products that aren't, lose.