左旋转字符串
左旋转字符串
http://www.nowcoder.com/questionTerminal/12d959b108cb42b1ab72cef4d36af5ec
public class Solution {
public String LeftRotateString(String str,int n) {
if(str == null || str.length() == 0) return "";
if(n > str.length()) n = n % str.length();
return str.substring(n,str.length()) + str.substring(0,n);
}
}
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