11 lines
346 B
Java
11 lines
346 B
Java
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String encode(String string) {
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Pattern pattern = Pattern.compile("(.)\\1*");
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Matcher matcher = pattern.matcher(string);
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StringBuilder encoded = new StringBuilder();
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while (matcher.find()) {
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encoded.append(matcher.group().length());
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encoded.append(matcher.group().charAt(0));
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}
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return encoded.toString();
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}
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