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In this article we will be discussing the working, syntax and examples of std::count_if() function in C++ STL.What is std::count_if()?std::count_if() function is an inbuilt function in C++ STL, which is defined in header file. count_if() is used to get the number of elements in a specified range which satisfy a condition. This function returns an integer value which is the number of elements which satisfies the condition.The function not only iterates through the given range but also checks if the statement or condition is true and counts how many times the statement or condition was true and returns the ... Read More
In this problem, we are given a linked list with a value, link pointer and an arbitrary pointer. Our task is to make the arbitrary pointer point to point the next large value in the list.Let’s take an example to understand the problem, Here, we can see 8 points to 12, 12 to 41, 41 to 54, 54 to 76 which are successive larger elements of the linked list.To solve this problem, we will use the merge sort algorithm to sort elements and use the sort as a linked list for the arbitrary pointer.For this we will use the merge ... Read More
The polar function of complex numbers is used to return a complex number.The polar() function is defined in the complex header file in c++. It takes the magnitude and phase angle of a complex number and generates a complex number using these values.Syntaxpolar(mag, phase);Parameters − it takes two values are parameters, the phase, and magnitude of the complex number to be generated.Return value − the function returns a complex number.polar(0.2, 0.5) -> (0.175517,0.0958851)Example Live Demo#include #include>complex.h> using namespace std; int main () { cout
In this problem, we are given an array of n elements. Each element of the array has either a policeman or a thief, one thief can be caught by one police and we have to find the maximum number of thieves that can be caught by the police if a policeman can catch a thief k units away from him.Let’s take an example to understand the problem, Input −array = {T, P, P, P, T , T, T} K = 2.Output − 3Explanation − here, each policeman will catch a thief, P at index 1 will catch T at index ... Read More
In this article we will be discussing the working, syntax and examples of multiset::crbegin() and multiset::crend() function in C++ STL.What is a multiset in C++ STL?Multisets are the containers similar to the set container, meaning they store the values in the form of keys same like a set, in a specific order.In multiset the values are identified as keys as same as sets. The main difference between multiset and set is that the set has distinct keys, meaning no two keys are the same, in multiset there can be the same keys value.Multiset keys are used to implement binary search ... Read More
g++ compiler is a C++ compiler for GNU in Linux.The g++ compiler also adds support for some special data structures that are not in C++ programming language standard library. These are known as policy-based data structures.The policy-based data structures provide the programmer a high-performance, semantic safety and flexibility as compared to the standard data structures of C++ std library.To include these data structures to your program, the following lines should be added, #include using namespace __gnu_pbds;ExampleLet’s see a program to see how these policy-based data structures work. Live Demo#include #include #include #include using namespace __gnu_pbds; using ... Read More
In this problem, we are given a string and we have to find its integer encryption using the Polybius Square Cipher.Polybius Square CipherIt is a table that is used for the conversion of letters into numbers. The table for English encryption is a 5X5 table i.e. contains 25 cells for 26 alphabets of an English dictionary. The letters i and j are kept together in a single cell.The following table shows a Polybius square Cipher −123451ABCDE2FGHI, JK3LMNOP4QRSTU5VWXYZThe letter of the tables can be randomized. Also, the size of the table can be changed based on the number of alphabets of ... Read More
In this article we will be discussing the working, syntax and examples of multiset::cbegin() and multiset::cend() function in C++ STL.What is a multiset in C++ STL?Multisets are the containers similar to the set container, meaning they store the values in the form of keys same like a set, in a specific order.In multiset the values are identified as keys as same as sets. The main difference between multiset and set is that the set has distinct keys, meaning no two keys are the same, in multiset there can be the same keys value.Multiset keys are used to implement binary search ... Read More
A popover is a simple tooltip plugin. A popover is a box of content that pops up when the user clicks on a specific element. This plugin relies on popover.js.Creating Popovers in HTMLThe attribute data-toggle = "popover" is used to create a popover in HTML. Adding this attribute to an element converts it to a popover.Syntaxpopover displayExample Live Demo Bootstrap Example Popover In BootStap Learn BootStrap $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); OutputPositioning PopoversYou can position popovers using the data-placement attribute. By default, a popover appears on the right ... Read More
Data analytics is the processing of data to extract useful information that supports the machine to make decisions. The processing of data involves cleaning, remodeling, and inspecting data.Data analytics requires high computing power as the data to process is too large. So there are specialized tools for data analytics.Some popular data analytics tools are −R programmingR is one of the best and most widely used tools for data analytics available for all major platforms like Windows, macOS, Unix. It has found usage in data modeling and statistics. Easily manipulation and representation of large data are done using R as it ... Read More