流連人間的蘇蘇

http://icpc.upc.edu.cn/problem.php?cid=1721&pid=6php #include<cstdio> #include<cstring> using namespace std; int n,d,i,j,k,kk,k1,l,r,a[10001],b[10001],c[10001]; int main() { scanf("%d%d",&n,&d);

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