Given N rational numbers in the form numerator/denominator, you are supposed to calculate their sum.
Input Specification:
Each input file contains one test case. Each case starts with a positive integer N (≤), followed in the next line N rational numbers a1/b1 a2/b2 ... where all the numerators and denominators are in the range of long int. If there is a negative number, then the sign must appear in front of the numerator.
Output Specification:
For each test case, output the sum in the simplest form integer numerator/denominator where integer is the integer part of the sum, n...
Distributed application architecture has a strong demand for complex logic. Upper-level businesses want to build more and richer applications quickly with their own incremental services, reduce the cost of manpower and time to carry out new services, quickly meet the changing market demand, and public services are distinguished to form a common business.Used services, which maximize code and logic reuse and avoid duplication of construction, are also called SOAs.
SOA(Service-Oriented Architecture)Service-oriented architecture is a component model that links different functional units of an ap...
In the process of preparing for Internet recruitment, leetcode and sword-finger offer are standard. Although I have written 200 questions so far, I have forgotten a lot of ideas or couldn’t pass the free bug once when I wrote the code. So I summarized them slowly from the beginning.If you have any questions, I hope you can communicate under the comments, and I’d be happy to communicate with you, to learn together, to take the BAT ATM. Maybe some people would say that there are enough solutions now, but this blog is part of a record of personal growth, and it’s the one that y...
AndroidMediaPlayer Player Player Player is provided to play media files, but MediaPlyer only packages MediaCodec and MediaExtractor under Android Media for easy use. But it’s best to understand An.Droid media file decoding, encoding and rendering process.
Useandroid.mediaThe MediaCodec and MediaExtractor under the package implement a simple video decoding rendering.
It has been used to:
MediaCodec:Responsible for coding and decoding media files. Internal methods are native methods.
MediaExtractor:Is responsible for finding the track from the file of the specified type of media file...
> some knowledge about hooks:
Using keep-alive, beforeDestroy is not called.Component hooks before destruction) and destroyed (component destruction), because components are not destroyed and cached.
This hook can be seen as an alternative to beforeDestroy, and if you cache a component, you can do something when the component is destroyed, you can put it in this hook.
If you leave the route, it will trigger in turn.
Inside the component, leave the current routing hook beforeRouteLeave => route front guard beforeEach =>Global post hook afterEach => deactivated leaveCache compone...
#!/bin/bashif [ $# -ne 1 ];then echo -e “$Usage: $0 URL\n” exit 1;fi
echo Broken links:
mkdir /tmp/$$.lynxcd /tmp/$$.lynx
# Visit web pages recursively and create lists of all hyperlinks in the website.lynx -traversal $1 > /dev/nullcount=0;
#reject.datThe file contains all links.sort -u reject.dat > links.txt
while read link;do output=`curl -I $link -s | grep “HTTP/.*OK”`; if [[ -z $output ]]; then echo $link; let count++ fidone < links.txt
[ $count -eq 0 ] && ...
dnsServer establishment
1.Install bind to build DNS server
yum install bind -y
2.Install and modify the configuration file: VIM /etc/named.conf
Modification:
listen-on port 53 { 192.168.1.145; }; Here IP is the server host IP.
#allow-query { localhost; };
Specify DNS parsing:
vim /etc/named.conf Add new analytic domain
zone “simplexue.com” IN {
type master; Main resolution: Master
file “simplexue.com.z...
According to project requirements, a good topology map is as follows:
Configure SW1’s g1/0/3’s /trunk, add g1/0/1 and g1/0/2 to VLAN 10 and VLAN 20 respectively.
Configure SW1’s g1/0/3’s /trunk, add g1/0/1 and g1/0/2 to VLAN 10 and VLAN 20 respectively.
Configuring the 802,1q sub interface of VLAN
