摘要:
"传送门" 典型的三维偏序,cdq分治 由于相同的花之间也会产生贡献,考虑将相同的花合并来做 代码: c++ include include include include using namespace std; void read(int &x) { char ch; bool ok; for( 阅读全文
摘要:
"传送门" 深入理解了一波后缀数组,这东西真的很妙诶,自己推感觉完全不现实,看来只能靠背代码了 这段时间就多敲敲,把板子记熟吧 代码: c++ include include include include using namespace std; void read(int &x) { char 阅读全文