标签：integer ret class input generate put ++ inpu color
The count-and-say sequence is the sequence of integers with the first five terms as following:
1. 1 2. 11 3. 21 4. 1211 5. 111221
1is read off as"one 1"or11.11is read off as"two 1s"or21.21is read off as"one 2, thenone 1"or1211.Given an integer n, generate the nth term of the count-and-say sequence.
Note: Each term of the sequence of integers will be represented as a string.
Example 1:
Input: 1 Output: "1"Example 2:
Input: 4 Output: "1211"
class Solution { public: string countAndSay(int n) { string result; result.push_back(‘1‘); for (int i = 2; i <= n; ++i) { string tmp(result); result.clear(); int size = tmp.size(); for (int index = 0; index <= size-1; ++index) { int count = 1; while (index <= size-2 && tmp[index] == tmp[index + 1]) { ++index; ++count; } result += std::to_string(count); result.push_back(tmp[index]); } } return result; } };
标签：integer ret class input generate put ++ inpu color
原文地址：http://www.cnblogs.com/naivecoder/p/7010497.html
