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Марина Аверкина
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[단독]폴란드, 韓 해군 최초 잠수함 ‘장보고함’ 무상 양도 안받기로
2月26日，携程集团宣布一系列董事会变动，该等变动自2026年2月25日起生效。公司联合创始人范敏辞任公司董事兼总裁职务，另一联合创始人季琦亦辞任公司董事职务。
Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.