标签：style blog color io for sp div on log
The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility)
P A H N
A P L S I I G
Y I R
And then read line by line: "PAHNAPLSIIGYIR"
Write the code that will take a string and make this conversion given a number of rows:
string convert(string text, int nRows);
convert("PAYPALISHIRING", 3) should return "PAHNAPLSIIGYIR".
1 class Solution { 2 public: 3 string convert(string s, int nRows) { 4 if (s.empty() || nRows <= 1) return s; 5 stringstream ss; 6 int n = s.length(); 7 for (int row = 0; row < nRows; ++row) { 8 for (int i = row; i < n; ) { 9 if (nRows - row - 1 > 0) { 10 ss << s[i]; 11 i += 2 * (nRows - row - 1); 12 if (i >= n) break; 13 14 } 15 if (row > 0) { 16 ss << s[i]; 17 i += 2 * row; 18 if (i >= n) break; 19 } 20 } 21 } 22 return ss.str(); 23 } 24 };
标签：style blog color io for sp div on log
原文地址：http://www.cnblogs.com/linyx/p/4038326.html
