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第一次写测试数据调试AC,不容易本人思路:y方向离散 + y方向BIT。 对于点的统计,BIT比线段树有优势。 本人2个failed的cases,希望对大家有帮助: 1) 4 10 10 1 1 1 3 3 3 6 6 6 12 12 12 2) 3 1 4 1 7 1 2 10 2 3 9 3 Followed by: Post your reply here: |
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