入门的一篇讲解,很棒:http://www.mamicode.com/info-detail-2600077.html 题目练习:https://blog.csdn.net/qq_34940287/article/details/87718729
K-th NumberPoj 2104 查询区间第k小
#include
#include
#include
#include
using namespace std;
const int maxn=100010;
inline int read()
{
int res=0;
char ch;
while((ch=getchar())'9');
while(ch>='0'&&ch
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