示例如果我有如下输入:
H9e3e2l5o
输出必须是:
Heeeeeeeeeeeellooooo
这是我到目前为止编写的代码:
public class RLE {
public static String decode(String st) {
char[] stArr = st.toCharArray();
char lastseen = 0;
StringBuilder sb = new StringBuilder();
for (char s : stArr) {
if (!Character.isDigit(s)) {
lastseen = s;
sb.append(s);
} else {
int n = Integer.parseInt(String.valueOf(s));
for (int i = 0; i < n - 1; i++) {
sb.append(lastseen);
}
}
}
return sb.toString();
}
结果:
'H9e3e2l5o' -> HHHHHHHHHeeeeelllllo
答案 0 :(得分:0)
我假设是通用变体,这里是更正版本:
DataSourceLookup