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#include <bits/stdc++.h> using namespace std; vector<string> split_string(string); vector<int>v[100003]; bool visit[100003]; // This function return the size of the cycle as mentioned in the explanation. int dfs(int i) { visit[i] = true; int z = 1; for(auto
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Objective This challenge will help you learn the concept of recursion. A function that calls itself is known as a recursive function. The C programming language supports recursion. But while using recursion, one needs to be careful to define an exit condition from the function, otherwise it will go into
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Objective This challenge will let you learn about bitwise operators in C. Inside the CPU, mathematical operations like addition, subtraction, multiplication and division are done in bit-level. To perform bit-level operations in C programming, bitwise operators are used which are explained below. * Bitwise AND operator & The output of bitwise
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Objective In this challenge, you will learn the usage of the for loop, which is a programming language statement which allows code to be repeatedly executed. The syntax for this is for ( <expression_1> ; <expression_2> ; <expression_3> ) <statement> * expression_1 is
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.MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0} Objective if and else are two of the most frequently used conditionals in C/C++, and they enable you to execute zero or one
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.MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0} Objective In this challenge, you will learn to implement the basic functionalities of pointers in C. A pointer in C is a way to
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Objective In this challenge, you will learn simple usage of functions in C. Functions are a bunch of statements glued together. A function is provided with zero or more arguments, and it executes the statements on it. Based on the return type, it either returns nothing (void) or something. A
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Objective The fundamental data types in c are int, float and char. Today, we're discussing int and float data types. The printf() function prints the given statement to the console. The syntax is printf("format string",argument_list);. In the function, if we are using an
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You are given a main function which reads the enumeration values for two different types as input, then prints out the corresponding enumeration names. Write a class template that can provide the names of the enumeration values for both types. If the enumeration value is not valid, then print unknown.
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A student signed up for workshops and wants to attend the maximum number of workshops where no two workshops overlap. You must do the following: Implement structures: struct Workshop having the following members: * The workshop's start time. * The workshop's duration. * The workshop's end time.
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Classes define new types in C++. Types in C++ not only interact by means of constructions and assignments but also via operators. For example: int a=2, b=1, c; c = b + a; The result of variable c will be 3. Similarly, classes can also perform operations using operator overloading.
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You are given three classes A, B and C. All three classes implement their own version of func. In class A, func multiplies the value passed as a parameter by : class A { public: A(){ callA = 0; } private: int callA; void inc(){ callA++; } protected: void func(int & a) { a = a