package leetcode.string;

/**

* @ClassName IsUnique

* @Description 判定字符是否唯一

* @Author changxuan

* @Date 2020/9/1 下午10:12

**/

public class IsUnique {

public boolean isUnique(String astr) {

char[] strArr = astr.toCharArray();

for (int i = 0; i < strArr.length; i++){

char curr = strArr[i];

for (int j = i+1; j < strArr.length; j ++){

if (curr == strArr[j])

return false;

}

}

return true;

}

}