0_0_13826090_7028.cpp:1:1: error: stray '\312' in program
是个简单DP题目，但是最难找的是转移方程。
^
0_0_13826090_7028.cpp:1:1: error: stray '\307' in program
0_0_13826090_7028.cpp:1:1: error: stray '\270' in program
0_0_13826090_7028.cpp:1:1: error: stray '\366' in program
0_0_13826090_7028.cpp:1:1: error: stray '\274' in program
0_0_13826090_7028.cpp:1:1: error: stray '\362' in program
0_0_13826090_7028.cpp:1:1: error: stray '\265' in program
0_0_13826090_7028.cpp:1:1: error: stray '\245' in program
0_0_13826090_7028.cpp:1:1: error: stray '\314' in program
0_0_13826090_7028.cpp:1:1: error: stray '\342' in program
0_0_13826090_7028.cpp:1:1: error: stray '\304' in program
0_0_13826090_7028.cpp:1:1: error: stray '\277' in program
0_0_13826090_7028.cpp:1:1: error: stray '\243' in program
0_0_13826090_7028.cpp:1:1: error: stray '\254' in program
0_0_13826090_7028.cpp:1:1: error: stray '\265' in program
0_0_13826090_7028.cpp:1:1: error: stray '\253' in program
0_0_13826090_7028.cpp:1:1: error: stray '\312' in program
0_0_13826090_7028.cpp:1:1: error: stray '\307' in program
0_0_13826090_7028.cpp:1:1: error: stray '\327' in program
0_0_13826090_7028.cpp:1:1: error: stray '\356' in program
0_0_13826090_7028.cpp:1:1: error: stray '\304' in program
0_0_13826090_7028.cpp:1:1: error: stray '\321' in program
0_0_13826090_7028.cpp:1:1: error: stray '\325' in program
0_0_13826090_7028.cpp:1:1: error: stray '\322' in program
0_0_13826090_7028.cpp:1:1: error: stray '\265' in program
0_0_13826090_7028.cpp:1:1: error: stray '\304' in program
0_0_13826090_7028.cpp:1:1: error: stray '\312' in program
0_0_13826090_7028.cpp:1:1: error: stray '\307' in program
0_0_13826090_7028.cpp:1:1: error: stray '\327' in program
0_0_13826090_7028.cpp:1:1: error: stray '\252' in program
0_0_13826090_7028.cpp:1:1: error: stray '\322' in program
0_0_13826090_7028.cpp:1:1: error: stray '\306' in program
0_0_13826090_7028.cpp:1:1: error: stray '\267' in program
0_0_13826090_7028.cpp:1:1: error: stray '\275' in program
0_0_13826090_7028.cpp:1:1: error: stray '\263' in program
0_0_13826090_7028.cpp:1:1: error: stray '\314' in program
0_0_13826090_7028.cpp:1:1: error: stray '\241' in program
0_0_13826090_7028.cpp:1:1: error: stray '\243' in program
0_0_13826090_7028.cpp:2:2: error: stray '\316' in program
* f(n)为其交点方案，
^
0_0_13826090_7028.cpp:2:2: error: stray '\252' in program
0_0_13826090_7028.cpp:2:2: error: stray '\306' in program
0_0_13826090_7028.cpp:2:2: error: stray '\344' in program
0_0_13826090_7028.cpp:2:2: error: stray '\275' in program
0_0_13826090_7028.cpp:2:2: error: stray '\273' in program
0_0_13826090_7028.cpp:2:2: error: stray '\265' in program
0_0_13826090_7028.cpp:2:2: error: stray '\343' in program
0_0_13826090_7028.cpp:2:2: error: stray '\267' in program
0_0_13826090_7028.cpp:2:2: error: stray '\275' in program
0_0_13826090_7028.cpp:2:2: error: stray '\260' in program
0_0_13826090_7028.cpp:2:2: error: stray '\270' in program
0_0_13826090_7028.cpp:2:2: error: stray '\243' in program
0_0_13826090_7028.cpp:2:2: error: stray '\254' in program
0_0_13826090_7028.cpp:3:2: error: stray '\274' in program
* 假设有r条非互相平行线，则
^
0_0_13826090_7028.cpp:3:2: error: stray '\331' in program
0_0_13826090_7028.cpp:3:2: error: stray '\311' in program
0_0_13826090_7028.cpp:3:2: error: stray '\350' in program
0_0_13826090_7028.cpp:3:2: error: stray '\323' in program
0_0_13826090_7028.cpp:3:2: error: stray '\320' in program
0_0_13826090_7028.cpp:3:2: error: stray '\314' in program
0_0_13826090_7028.cpp:3:2: error: stray '\365' in program
0_0_13826090_7028.cpp:3:2: error: stray '\267' in program
0_0_13826090_7028.cpp:3:2: error: stray '\307' in program
0_0_13826090_7028.cpp:3:2: error: stray '\273' in program
0_0_13826090_7028.cpp:3:2: error: stray '\245' in program
0_0_13826090_7028.cpp:3:2: error: stray '\317' in program
0_0_13826090_7028.cpp:3:2: error: stray '\340' in program
0_0_13826090_7028.cpp:3:2: error: stray '\306' in program
0_0_13826090_7028.cpp:3:2: error: stray '\275' in program
0_0_13826090_7028.cpp:3:2: error: stray '\320' in program
0_0_13826090_7028.cpp:3:2: error: stray '\320' in program
0_0_13826090_7028.cpp:3:2: error: stray '\317' in program
0_0_13826090_7028.cpp:3:2: error: stray '\337' in program
0_0_13826090_7028.cpp:3:2: error: stray '\243' in program
0_0_13826090_7028.cpp:3:2: error: stray '\254' in program
0_0_13826090_7028.cpp:3:2: error: stray '\324' in program
0_0_13826090_7028.cpp:3:2: error: stray '\362' in program
0_0_13826090_7028.cpp:4:2: error: stray '\314' in program
* f[n] = (n-r) * r (n-r条互相平行线和其它r条线的交点) + f[r] 【刘春英PPT有讲，可百度搜】
^
0_0_13826090_7028.cpp:4:2: error: stray '\365' in program
0_0_13826090_7028.cpp:4:2: error: stray '\273' in program
0_0_13826090_7028.cpp:4:2: error: stray '\245' in program
0_0_13826090_7028.cpp:4:2: error: stray '\317' in program
0_0_13826090_7028.cpp:4:2: error: stray '\340' in program
0_0_13826090_7028.cpp:4:2: error: stray '\306' in program
0_0_13826090_7028.cpp:4:2: error: stray '\275' in program
0_0_13826090_7028.cpp:4:2: error: stray '\320' in program
0_0_13826090_7028.cpp:4:2: error: stray '\320' in program
0_0_13826090_7028.cpp:4:2: error: stray '\317' in program
0_0_13826090_7028.cpp:4:2: error: stray '\337' in program
0_0_13826090_7028.cpp:4:2: error: stray '\272' in program
0_0_13826090_7028.cpp:4:2: error: stray '\315' in program
0_0_13826090_7028.cpp:4:2: error: stray '\306' in program
0_0_13826090_7028.cpp:4:2: error: stray '\344' in program
0_0_13826090_7028.cpp:4:2: error: stray '\313' in program
0_0_13826090_7028.cpp:4:2: error: stray '\374' in program
0_0_13826090_7028.cpp:4:2: error: stray '\314' in program
0_0_13826090_7028.cpp:4:2: error: stray '\365' in program
0_0_13826090_7028.cpp:4:2: error: stray '\317' in program
0_0_13826090_7028.cpp:4:2: error: stray '\337' in program
0_0_13826090_7028.cpp:4:2: error: stray '\265' in program
0_0_13826090_7028.cpp:4:2: error: stray '\304' in program
0_0_13826090_7028.cpp:4:2: error: stray '\275' in program
0_0_13826090_7028.cpp:4:2: error: stray '\273' in program
0_0_13826090_7028.cpp:4:2: error: stray '\265' in program
0_0_13826090_7028.cpp:4:2: error: stray '\343' in program
0_0_13826090_7028.cpp:4:2: error: stray '\241' in program
0_0_13826090_7028.cpp:4:2: error: stray '\276' in program
0_0_13826090_7028.cpp:4:2: error: stray '\301' in program
0_0_13826090_7028.cpp:4:2: error: stray '\365' in program
0_0_13826090_7028.cpp:4:2: error: stray '\264' in program
0_0_13826090_7028.cpp:4:2: error: stray '\272' in program
0_0_13826090_7028.cpp:4:2: error: stray '\323' in program
0_0_13826090_7028.cpp:4:2: error: stray '\242' in program
0_0_13826090_7028.cpp:4:2: error: stray '\323' in program
0_0_13826090_7028.cpp:4:2: error: stray '\320' in program
0_0_13826090_7028.cpp:4:2: error: stray '\275' in program
0_0_13826090_7028.cpp:4:2: error: stray '\262' in program
0_0_13826090_7028.cpp:4:2: error: stray '\243' in program
0_0_13826090_7028.cpp:4:2: error: stray '\254' in program
0_0_13826090_7028.cpp:4:2: error: stray '\277' in program
0_0_13826090_7028.cpp:4:2: error: stray '\311' in program
0_0_13826090_7028.cpp:4:2: error: stray '\260' in program
0_0_13826090_7028.cpp:4:2: error: stray '\331' in program
0_0_13826090_7028.cpp:4:2: error: stray '\266' in program
0_0_13826090_7028.cpp:4:2: error: stray '\310' in program
0_0_13826090_7028.cpp:4:2: error: stray '\313' in program
0_0_13826090_7028.cpp:4:2: error: stray '\321' in program
0_0_13826090_7028.cpp:4:2: error: stray '\241' in program
0_0_13826090_7028.cpp:4:2: error: stray '\277' in program
0_0_13826090_7028.cpp:5:2: error: stray '\323' in program
* 用dp[i][j]表示i条直线，是否有会有j个交点，如果有j个交点，则置为1，否则为0；
^
0_0_13826090_7028.cpp:5:2: error: stray '\303' in program
0_0_13826090_7028.cpp:5:2: error: stray '\261' in program
0_0_13826090_7028.cpp:5:2: error: stray '\355' in program
0_0_13826090_7028.cpp:5:2: error: stray '\312' in program
0_0_13826090_7028.cpp:5:2: error: stray '\276' in program
0_0_13826090_7028.cpp:5:2: error: stray '\314' in program
0_0_13826090_7028.cpp:5:2: error: stray '\365' in program
0_0_13826090_7028.cpp:5:2: error: stray '\326' in program
0_0_13826090_7028.cpp:5:2: error: stray '\261' in program
0_0_13826090_7028.cpp:5:2: error: stray '\317' in program
0_0_13826090_7028.cpp:5:2: error: stray '\337' in program
0_0_13826090_7028.cpp:5:2: error: stray '\243' in program
0_0_13826090_7028.cpp:5:2: error: stray '\254' in program
0_0_13826090_7028.cpp:5:2: error: stray '\312' in program
0_0_13826090_7028.cpp:5:2: error: stray '\307' in program
0_0_13826090_7028.cpp:5:2: error: stray '\267' in program
0_0_13826090_7028.cpp:5:2: error: stray '\361' in program
0_0_13826090_7028.cpp:5:2: error: stray '\323' in program
0_0_13826090_7028.cpp:5:2: error: stray '\320' in program
0_0_13826090_702
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