String Compression Problem in O(n) time complexity | Java interview question

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[@ketulpatel1161]

You explained very well... Pasting more simplified code:
public static void main(String[] args) {
String str = "w4a3d1e1x6";
StringBuilder strBuilder = new StringBuilder();
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (Character.isDigit(c)) {
int j = (c - '0');
while (j != 0) {
strBuilder.append(str.charAt(i - 1));
j--;
}
}
}
System.out.println("Output String: " + strBuilder);
}

[@dailycodingproblem]

What if the input is w4s6w8a9

[@codeWithDebjeet]

@dailycodingproblem it considers each character are unique in string otherwise we can write w4w7w9. Ye will it identify difference. I hope you got it

[@dailycodingproblem]

@codeWithDebjeet can you give the link of the question ,also why we are not considering numbers more than 1 digit ex w12s8