题目链接: World is Exploding Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>A…
World is Exploding Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 566 Accepted Submission(s): 263 Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) sati…
2016暑假多校联合---World is Exploding Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>Ad. Input The input consists of multiple test cases. Each test case begin wit…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5792 World is Exploding Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others) 问题描述 输入 The input consists of multiple test cases. Each test case begin with an integer n in a sin…
World is Exploding 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5792 Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a < b≤n,1≤c < d≤n,Aa < Ab,Ac > Ad. Input The input consists of multipl…
World is Exploding 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5792 Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>Ad. Input The input consists of multiple test c…
The unstable gradient problem: The fundamental problem here isn't so much the vanishing gradient problem or the exploding gradient problem. It's that the gradient in early layers is the product of terms from all the later layers. When there are many…
http://acm.hdu.edu.cn/showproblem.php?pid=5792 World is Exploding Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>Ad. Input The input consists of multipl…
World is Exploding Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 727 Accepted Submission(s): 348 Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) sati…
hdu 5792 要找的无非就是一个上升的仅有两个的序列和一个下降的仅有两个的序列,按照容斥的思想,肯定就是所有的上升的乘以所有的下降的,然后再减去重复的情况. 先用树状数组求出lx[i](在第 i 个数左边的数中比它小的数的个数),ld[i](在第 i 个数左边的数中比它大的数的个数),rx[i](在第 i 个数右边的数中比它小的数的个数) ,rd[i](在第 i 个数右边的数中比它大的数的个数).然后重复的情况无非就是题目中a与c重合(rx[i]*rd[i]),a与d重合(rd[i]*ld[…
题意:满足题目中的式子,a < b && c < d && Va < Vb && Vc > Vd 思路:先求不讨论位置重合的情况,把对应的2种关系相乘,然后得到的答案减去重合的地方.不想解释,我特么改着改着就对了.都不知道哪里错了,叫对了数据还是找不到.因为只有一组数据出错. #include<bits/stdc++.h> using namespace std; ; int tr[maxn], in[maxn], sar…
题意:给定 n 个数,让你数出 a < b && c < d && a != b != c != d && Aa < Ab && Ac > Ad. 析:首先,给的数太大了,先要进行离散化处理,然后先算出Aa < Ab 和 Ac > Ad.这可以用树状数组解决,一个正向的,一个反向,同时再求出四种数,然后减去,就好了. 代码如下: #pragma comment(linker, "/STACK:…
题意: 给出一个长为n的序列A,问有多少四元组(a, b, c, d)满足$a \ne b \ne c \ne d, 1 \leq a < b \leq n, 1 \leq c < d \leq n, A_a < A_b, A_c > A_d$. 解法: 容斥,考虑用正序对乘以逆序对后,得到的方案中四种不合法情况: 1.$c < d = a < b$ 2.$a < b = c < d$ 3.$a = c < d$ 且 $a = c < d$ 4.…
Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>Ada≠b≠c≠d,1≤a<b≤n,1≤c<d≤n,Aa<Ab,Ac>Ad. InputThe input consists of multiple test cases. Each test case begin with an int…
题目:Accurate Image Super-Resolution Using Very Deep Convolutional Networks(2016CVPR) 摘要:文中提出了一种高精度处理单幅超分辨(HR)图像的方法.用了很深的卷积网络inspired by 用于处理ImageNet 分类的VGG-net.发现提高网络深度可大幅提高精度.但是,网络越深,收敛速度成了问题.文中给出了提高训练效率的方法:仅学习residuals使用非常高的学习速率(比SRCNN高10e4倍).并且比现有方…
Engish version copied from here Why This Document? As editor of the Jargon File and author of a few other well-known documents of similar nature, I often get email requests from enthusiastic network newbies asking (in effect) "how can I learn to be a…