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Function: driver
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Function: get_footer
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
나는 π만
2020.01.01 06:32
조회 479
네 자리 이하의 자연수 abcd에 대해 누적 자리합을 a+ab+abc+abcd로 정의하자.
예)2134의 누적 자리합=2+21+213+2134=2370
이때, n+11과 n+111이 어떤 수의 누적 자리합이 되는 2003보다 작은 자연수를
하나 구하여라.
지금 바로
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