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给大家个数据,希望有用2 5 -3 4 -6 3 4 5 -5 3 -3 5 2 3 3 3 20 8 -20 7 -18 6 -5 8 -21 8 -15 7 -17 5 -1 5 -2 3 -9 6 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 7 9 6 10 5 0 0 2 3 0 2 2 3 2 3 0 2 1 3 3 3 1 2 -3 2 2 4 8 5 2 4 -4 4 -3 3 -3 1 -3 0 -1 0 0 5 6 0 3 0 1 2 -3 1 2 1 3 2 1 2 -3 1 2 1 1 2 0 2 2 3 0 2 2 3 4 -5 4 3 4 3 2 3 6 -9 3 -3 1 2 -3 2 2 1 6 2 1 2 1 2 1 2 -3 1 2 1 0 0 1 2 0 2 2 3 0 2 1 3 3 10 1 10 2 3 4 5 3 5 1 10 2 3 4 5 4 7 1 10 2 3 4 5 0 0 3 9 1 10 2 3 4 5 0 0 ================结果 Case 1: 1 Case 2: 2 Case 3: 4 Case 4: 1 Case 5: 1 Case 6: -1 Case 7: 3 Case 8: -1 Case 9: 2 Case 10: 1 Case 11: 1 Case 12: -1 Case 13: -1 Case 14: 2 Case 15: 1 Case 16: 1 Case 17: 1 Case 18: -1 Case 19: -1 Case 20: -1 挥着翅膀的鳖 献上。。。 d<=0不需要判断 y<=0 不需要判断 把每个岛屿来当做雷达的圆心,半径为d,做圆,与x轴会产生两个焦点L和R,这就是一个区间; 首先就是要把所有的区间找出来,然后x轴从左往右按L排序,再然后就是所谓的贪心把那些互相重叠的区间去掉就行了,区间也就是雷达; Followed by:
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