3. ä¾ â åï¼1 ~ Nã¾ã§ã®æ´æ°ã®ç·åãæ±ãã â æ®éã«è¨ç®ãã â N-1å足ãç® â O(N-1) â å ¬å¼ã使ã â 足ãç®ã¨æãç®ã¨å²ãç® â O(3) â è¨ç®ã®ä»æ¹ã«ãã£ã¦è¨ç®éãéããã¨ããã 4. ããã¤ãã®ã«ã¼ã« â Oè¨æ³ã®ä¸èº«ã¯ä¸çªå¤§ããªè¦æ¨¡ã ãæ®ã â ä¿æ°ã¯1ã«ãã â ä¾ â O(N-1) â O(N) â O(4N^2 + 2N) â O(N^2) â O(N^2 + M^2) â Nã¨Mãç¬ç«ãªã®ã§ãã以ä¸ç¡ç â O(2^N + N^2) â O(2^N) â O(3) â O(1) 5. ãªãã â ä¸ã®å¤æ°ãé常ã«å¤§ããªå¤ã«ãªã£ãæã®ãã¨ãèãã â O(5N^2 + 100N + 4)ã®å ´å â N = 1 â 109 â N = 100â 60004 â N = 10000 â 501000004 â N = 100000000 â 500
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