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Articles on Trending Technologies
Technical articles with clear explanations and examples
Print all Semi-Prime Numbers less than or equal to N in C++
In this problem, we are given an integer N. and we have to print all the semiprime numbers that are less than or equal to N.Before solving this problem, let’s understand what is a semi-prime number.A semi-prime number is a number whose value is the product of two distinct prime numbers.Let’s take an example, 21 = 3*7 is a semiprime number.25 = 5*5 is not a semiprime number.Now, let’s take an example of semiprime numbers less than or equal to n.Input: N = 15 Output: 6 10 14 15To solve this problem, we have to take each number less than ...
Read MoreOutlook Tips and Tricks for Efficient Work Productivity
Millions of people use Microsoft Outlook for managing their email, meetings, and contacts. It offers so many features but few of us really know how to make the most of its features. When you use these useful features effectively, Microsoft Outlook enables you to do your work seamlessly and as efficiently as possible.Few of tips and tricks are listed belowAvoid Repeated Typing with Quick PartsIf you need to use a standard passage of text over and over again, save it as a Quick Part for easy insertion in emails. To do so, simply highlight the text in the composer window, ...
Read MorePrint all subarrays with 0 sum in C++
In this problem, we are given an array of integer values and we have to print all those subarrays from this array that have the sum equal to 0.Let’s take an example to understand the topic better, Input: array = [-5, 0, 2, 3, -3, 4, -1] Output: Subarray with sum 0 is from 1 to 4. Subarray with sum 0 is from 5 to 7 Subarray with sum 0 is from 0 to 7To solve this problem, we will check all subarrays possible. And check if the sum of these subarrays is equal to 0 and print them. This ...
Read MoreReview the Right Way!
Reviews are a prominent part of the Software Development Life Cycle (SDLC). A review is a process of looking over a document/ piece of code for the purpose of evaluation, for examining the quality or for approval.Types of ReviewsThe reviews are done in various ways. But there are majorly three types of reviews. Informal reviews, Formal reviews and Walkthroughs.Informal ReviewsInformal reviews are also known as Peer reviews. In this type of reviews, the reviewer gets his/ her documents or code verified by a peer (a co-worker). The findings of this type of review is not documented. This is majorly done ...
Read MoreOnline Tutoring Trends
If you want to succeed in your career, you need to keep learning and be up-to-date with the new technologies. To remain in touch with the upcoming technologies and concepts, you need to learn. The easiest and best way to learn new skills is to learn in your own time and in your own comfort. Most of the online teaching is done using videos, as it is a great medium to make it interactive. To enable the learning online, we have some good tutoring websites, let us see few of them −TutorialsPointTutorialsPoint gives you space where you can learn using ...
Read MorePrint all subsequences of a string using Iterative Method in C++
In this problem, we are given a string and we have to find the substring from the given string. The substring to be found should start with a vowel and end with constant character.A string is an array of characters.The substring that is to be generated in this problem can be generated by deleting some characters of the string. And without changing the order of the string.Input: ‘abc’ Output: ab, ac, abcTo solve this problem, we will iterate the string and fix vowels and check for the next sequence. Let’s see an algorithm to find a solution −AlgorithmStep 1: Iterate ...
Read MorePrint all subsequences of a string using ArrayList in C++
In this problem, we are given a string and we have to print all subsequences of the string. The substring is formed by deleting elements. Also, the order of string should not be altered.Let’s take an example to understand the problem better −Input: string = “xyz” Output: x y xy z xz yz xyzTo solve this problem, we will find all substring starting from freezing the first character of the string and find subsequence accordingly, then going for the next character in string and subsequence.Examplepublic class Main { public static void printSubString(String sub, String subSeq){ if ...
Read MoreNginx WebServer Best Security Practices
NGINX is a free, open-source, high-performance HTTP server and a reverse proxy, also known as IMAP/POP3 proxy server. NGINX is famous for its high performance, stability, rich feature set, simple configuration, and low resource consumption. In this article, we will explain about ” Nginx WebServer Best Security Practices”.sysctl.conf is a simple file containing sysctl values to be read in and set by sysctl. To open sysctl.conf, use the following command –$ sudo vim /etc/sysctl.confThe sample output should be like this –## /etc/sysctl.conf - Configuration file for setting system variables # See /etc/sysctl.d/ for additional system variables. # See sysctl.conf (5) ...
Read MorePrint all Subsequences of String which Start with Vowel and End with Consonant in C++
In this problem, we are given a string and we have to find the substring from the given string. The substring to be found should start with a vowel and end with constant character.A string is an array of characters.The substring that is to be generated in this problem can be generated by deleting some characters of the string. And without changing the order of the string.Input: ‘abc’ Output: ab, ac, abcTo solve this problem, we will iterate the string and fix vowels and check for the next sequence. Let’s see an algorithm to find a solution −AlgorithmStep 1: Iterate ...
Read MoreNetdata – A Real-Time Performance Monitoring Tool for Linux Systems
Netdata is an enormously optimized Linux utility that presents real-time (per 2nd) efficiency monitoring for Linux techniques, applications, SNMP devices, etc. And shows full interactive charts that certainly renders all collected values over the web browser to investigate them. This article explains about how to find a real-time performance monitoring tool for Linux Systems.FeaturesIt monitors total and per Core CPU usage, interrupts, softirqs and frequency.It monitors Memory, RAM, Swap and Kernel usage.It monitors Disk I/O (per disk: bandwidth, operations, backlog, utilisation, etc).It monitors Network interfaces including: bandwidth, packets, errors, drops, etc).It monitors Netfilter / iptables Linux firewall connections, events, errors, ...
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