标签:nbsp turn art har for pig style lov static
/** * 翻转字符串‘ * 给定一个字符类型的数组chas,请在单词间作逆序调整。只要做到单词顺序逆序即可。 * 例如,如果看成字符串"dog loves pig",则调整为"pig loves dog" * 过程:先整体逆序,在局部单词逆序 */ public static void rotateWord(char[] chas) { if (chas == null || chas.length <= 0) { return; } reverse(chas, 0, chas.length - 1); int l = -1; int r = -1; for (int i = 0; i < chas.length; i++) { if (chas[i] != ‘ ‘) { l = i == 0 || chas[i - 1] == ‘ ‘ ? i : l; r = i == chas.length - 1 || chas[i + 1] == ‘ ‘ ? i : r; } if (l != -1 && r != -1) { reverse(chas, l, r); l = -1; r = -1; } } } public static void reverse(char[] chas, int start, int end) { char tmp; while (start != end) { tmp = chas[start]; chas[start] = chas[end]; chas[end] = tmp; start++; end--; } }
1 /** 2 * 翻转字符串‘ 3 * 给定一个字符类型的数组chas,和一个整数size,请把大小为size的左半区整体移到右半区,右半区间整体移到左半区间 4 * 例如,"ABCDE",size=3,调整为"DEABC" 5 * 过程:先逆序前部分,在逆序后部分,最后逆序整体 6 */ 7 public static void rotate1(char[] chas, int size) { 8 if (chas == null || size <= 0 || size >= chas.length) { 9 return; 10 } 11 reverse(chas, 0, size - 1); 12 reverse(chas, size, chas.length - 1); 13 reverse(chas, 0, chas.length - 1); 14 } 15 16 public static void reverse(char[] chas, int start, int end) { 17 char tmp; 18 while (start != end) { 19 tmp = chas[start]; 20 chas[start] = chas[end]; 21 chas[end] = tmp; 22 start++; 23 end--; 24 } 25 }
标签:nbsp turn art har for pig style lov static
原文地址:http://www.cnblogs.com/qinwangchen/p/6107140.html