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This discussion was converted from issue #24 on September 15, 2026 10:45.
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Problem link
https://atcoder.jp/contests/arc061/tasks/arc061_a
Problem Summary
문자열 s의 문자 사이에 + 를 넣어 만들 수 있는 수를 전부 더하는 문제.
Solution
그냥 말 그대로 +를 문자 사이에 다 한 번 씩 넣어서 만들 수 있는 수를 더하면 된다.
비트 연산으로 간단하게 가능.
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