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".
Solution:
public string Convert(string s, int numRows) { if(numRows <=1) return s; string ss = ""; int len = s.Length; int m = 0; for(int i =0;i<numRows;i++) { m = (numRows - i-1); int n = i; while(n<len) { ss += s[n]; int j =n+2*m; if(j<len && (m !=0 && m != numRows-1)) ss += s[j]; n += 2*(numRows -1) ; } } return ss; }
Leetcode 6 ZigZag Conversion C#
原文：http://www.cnblogs.com/renyualbert/p/5801426.html