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🎈boj 22865 - 가장먼곳
🗨 해결방법 :
친구의 집을 시작점으로 다익스트라를 사용하여 각 지점까지의 최소를 구한다 이를 친구마다 반복한다 그 중 가장 먼 곳이 나의 집이다
📝메모 :
플로이드 워셜을 사용하면 터진다
✔코드 :
🎈boj 17298- 오큰수
🗨 해결방법 :
스택을 사용
📝메모 :
자신의 오른쪽에 자신보다 작은 수는 존재할 필요가 없다
✔코드 :
🎈boj 25682- 체스판다시칠하기2
🗨 해결방법 :
누적합
📝메모 :
체스판은 흰색 혹은 검은색으로 시작한다 모든 점에서 새롭게 다시 칠해야 공간을 찾는 것은 비효율적이다
✔코드 :