OJ Board

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ANSWER1\n
ANSWER2\n
ANSWER3\n

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cout << "  ERROR" << endl;

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struct Solution {
	string number;

	friend ostream& operator<<(ostream& strm, const Solution& solution) {
		if ( solution.number.length() > DIGITS )
			strm << "  ERROR";
		else if ( solution.number.length() == DIGITS )
			strm << solution.number;
		else
			strm << setw(DIGITS - solution.number.length()) << ' ' << solution.number;

		return strm;
	}
};

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void main(void) {
	transform(istream_iterator<Problem>(cin), istream_iterator<Problem>(), ostream_iterator<Solution>(cout, "\n"), ProblemSolver());
}

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if(error) cout << "  ERROR" << endl;
else      cout << setw(7) << temp << endl;

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if(error) printf("  ERROR\n");
else      printf("%7s\n",temp);