摘要：
#include<bits/stdc++.h> #define N 30 #define ll long long #define mod 1000000007 #define opt 99999 using namespace std; int n,m,k,lim; ll ans; int dx[ 阅读全文
摘要：
/* ai<=ai+1时 枚举每一个区间长度二分右端点 */ #include<bits/stdc++.h> #define N 500001 #define ll long long using namespace std; ll n,ans,K,m; ll a[N],sum[N]; inline 阅读全文
摘要：
/* 离散化 差分 */ #include #define N 4000007 using namespace std; int n,ans; int tmp[N],a[N],b[N],s[N]; int main() { freopen("meizi.in","r",stdin); freopen("meizi.out","w",stdout); scanf("... 阅读全文