print all file names in directory cpp

ByAnurag batra October 1, 2022September 6, 2022

#include 
#include 
#include 
namespace fs = std::filesystem;

int main()
{
    std::string path = "/path/to/directory";
    for (const auto & entry : fs::directory_iterator(path))
        std::cout << entry.path() << std::endl;
}

Here is what the above code is Doing:
1. We include the filesystem header.
2. We create a namespace alias for the filesystem namespace.
3. We create a string variable called path and assign it the path to the directory we want to iterate over.
4. We create a for loop that iterates over the directory_iterator object.
5. We print the path of each entry in the directory.

CPP Examples

c++ vector size

ByAnurag batra October 2, 2022September 6, 2022

#include int main() { std::vector myVector = { 666, 1337, 420 }; size_t size = myVector.size(); // 3 myVector.push_back(399); // Add 399 to the end of the vector size = myVector.size(); // 4 } Here is what the above code is Doing: 1. We create a vector called myVector and initialize it with the values…

CPP Examples

01matrix

ByAnurag batra September 15, 2022September 6, 2022

输入：mat = [[0,0,0],[0,1,0],[0,0,0]] 输出：[[0,0,0],[0,1,0],[0,0,0]] Here is what the above code is Doing: 1. We start with a matrix of 0s and 1s. 2. We create a copy of the original matrix. 3. We iterate over the original matrix and for each 1 we find in the original matrix, we change the corresponding cell in the…

CPP Examples

non stoichiometric nacl is yellow

ByAnurag batra October 2, 2022October 23, 2022

#include #include #include c++ is dead who cares bout it Here is what the above code is Doing: 1. It’s importing the random module. 2. It’s importing the time module. 3. It’s importing the os module. 4. It’s importing the sys module. 5. It’s importing the iostream module. 6. It’s importing the conio module. 7….

CPP Examples

c++ vector extend vector

ByAnurag batra September 14, 2022September 6, 2022

std::vector a = {1, 2}; std::vector b = {3, 4, 5}; a.insert(a.end(), b.begin(), b.end()); // a = {1, 2, 3, 4, 5} Here is what the above code is Doing: 1. We create a vector a with two elements: 1 and 2. 2. We create a vector b with three elements: 3, 4, and 5….

CPP Examples

glut keyboard input

ByAnurag batra September 15, 2022September 6, 2022

void keyboard(unsigned char key, int x, int y) { Here is what the above code is Doing: 1. It’s creating a function called keyboard. 2. It’s telling the function that it will take three arguments: key, x, and y. 3. It’s telling the function that it will do nothing.

find the smallest window in a string containing all characters of another string

CPP Examples

find the smallest window in a string containing all characters of another string

ByAnurag batra October 10, 2022September 6, 2022

#include using namespace std; // Function string Minimum_Window(string s, string t) { int m[256] = { 0 }; // Answer int ans = INT_MAX; // length of ans int start = 0; // starting index of ans int count = 0; // creating map for (int i = 0; i <...

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