Buttercola: Airbnb: Page Display
Airbnb: Page Display
实现分页显示。给了以下一些输入数据，要求将以下行分页显示，每页12行，其中每行已经按score排好序，分页显示的时候如果有相同host id的行，则将后面同host id的行移到下一页。
[
"host_id,listing_id,score,city",
"1,28,300.1,SanFrancisco",
"4,5,209.1,SanFrancisco",
"20,7,208.1,SanFrancisco",
"23,8,207.1,SanFrancisco",
"16,10,206.1,Oakland",
"1,16,205.1,SanFrancisco",
"6,29,204.1,SanFrancisco",
"7,20,203.1,SanFrancisco",
"8,21,202.1,SanFrancisco",
"2,18,201.1,SanFrancisco",
"2,30,200.1,SanFrancisco",
"15,27,109.1,Oakland",
"10,13,108.1,Oakland",
"11,26,107.1,Oakland",
"12,9,106.1,Oakland",
"13,1,105.1,Oakland",
"22,17,104.1,Oakland",
"1,2,103.1,Oakland",
"28,24,102.1,Oakland",
"18,14,11.1,SanJose",
"6,25,10.1,Oakland",
"19,15,9.1,SanJose",
"3,19,8.1,SanJose",
"3,11,7.1,Oakland",
"27,12,6.1,Oakland",
"1,3,5.1,Oakland",
"25,4,4.1,SanJose",
"5,6,3.1,SanJose",
"29,22,2.1,SanJose",
"30,23,1.1,SanJose"
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