	ID	题目显示标签隐藏标签	AC / 尝试	难度
	90	P1550C Manhattan Subarrays brute force geometry greedy implementation *1700	0 / 0	(无)
	76	P1552C Maximize the Intersections combinatorics constructive algorithms geometry greedy sortings *1800	0 / 0	(无)
	7301	P1571H Laser Beams *special problem geometry probabilities	0 / 0	(无)
	7281	P1575B Building an Amusement Park binary search geometry	0 / 0	(无)
	7264	P1578F Framing Pictures geometry *2900	0 / 0	(无)
	7261	P1578I Interactive Rays geometry interactive *3300	0 / 0	(无)
	7315	P1599G Shortest path geometry greedy math	0 / 0	(无)
	7406	P1689D Lena and Matrix data structures dp geometry shortest paths *1900	0 / 0	(无)
	7371	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	(无)
	7514	P1886B Fear of the Dark binary search geometry math *1200	0 / 0	4
	7950	P1984H Tower Capturing combinatorics dp geometry *3300	0 / 0	10
	7940	P1986A X Axis brute force geometry math sortings *800	0 / 0	3

HGNU

根据当前过滤条件随机选择一道题

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开发与维护

杨旭龙、王树淳、王国斌、宋文宇、朱天伦

特别鸣谢

肖飞、关玉蓉、魏银珍、周芬

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