摘要：
program Neayo;const inf='light.in'; ouf='light.out';var i,j,k,m,n:longint; exp,sr,sl,l,r:extended; x,y,tan:array[0..100001]of extended;procedure qsort(r,l:longint);var tmp,xx:extended; i,j:longint;begin i:=l;j:=r; xx:=x[l+random(r-l+1)]; repeat ... 阅读全文