[맵과 셋] 03월 13일 #2
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mkwkw
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Mar 13, 2022
03월 08일 - 맵과 셋/20291.cpp
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| } | ||
| m[name]++; | ||
| } | ||
| sort(file.begin(), file.end()); // 사전순으로 정렬 |
| cout << "0\n"; | ||
| } | ||
| } | ||
| } |
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p2. 이 문제에서는 map을 사용하지 않고 set을 사용하거나 vector의 이분탐색을 사용하는 것이 좋아요! set을 사용하려면 set 중에서도 unordered_set을 사용해야합니다. unordered_set은 시간복잡도가 O(1)이기 때문이에요. unordered_set과 find함수를 사용하면 시간초과 나지 않고 통과될 것입니다.
그리고 note[temp]는 사용하지 않는 것이 좋을 것 같아요! map에 없는 키가 들어가면 map에 자동으로 insert되기 때문이에요.
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선택 문제 6개 모두 제출하셔서 쿠폰도 1개 적립해드렸습니다~ |
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내용 & 질문
<기존 제출>
<추가 제출>