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