摘要：亲测有效 https://blog.csdn.net/qiangweiyan/article/details/79117641 阅读全文

摘要：//就当模板看了 import java.math.BigInteger; import java.util.Scanner; public class Main { static BigInteger b[] = new BigInteger[110000]; static BigInteger 阅读全文

摘要：线段树模板(有lazy数组): #include<iostream> using namespace std; #define int long long typedef long long ll; const int N = 2e5 + 10; #define lson rt << 1 // == 阅读全文