摘要:
// luogu-judger-enable-o2 #include<bits/stdc++.h> using namespace std; #define ll long long #define N 10000001 #define inf 1e9+7 int read() { int f=1, 阅读全文
摘要:
// luogu-judger-enable-o2 // luogu-judger-enable-o2 #include<bits/stdc++.h> using namespace std; #define ll long long #define N 1000001 #define inf 1e 阅读全文
摘要:
#include<bits/stdc++.h> using namespace std; #define ll long long #define N 1000001 #define inf 1e9+7 int read() { int f=1,x=0;char ch=getchar(); whil 阅读全文