43 lines
1.2 KiB
Java
43 lines
1.2 KiB
Java
// SumLongOctal.java
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import java.math.BigInteger;
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public class SumLongOctal {
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public static void main(String[] args) {
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long sum = 0;
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for (String argument : args) {
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StringBuilder number = new StringBuilder();
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for (char c : argument.toCharArray()) {
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if (!Character.isWhitespace(c)) {
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number.append(c);
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} else {
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sum += parseNumber(number);
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number = new StringBuilder();
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}
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}
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sum += parseNumber(number);
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}
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System.out.println(sum);
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}
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static long parseNumber(StringBuilder number) {
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if (!number.isEmpty()) {
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String numberString = number.toString();
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int numberStringLength = numberString.length();
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if (numberString.endsWith("o") || numberString.endsWith("O")) {
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return new BigInteger(
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number.substring(0, numberStringLength - 1),
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8
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).longValue();
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} else {
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return Long.parseLong(numberString);
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}
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} else {
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return 0;
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}
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}
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}
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