variables in c++

#include <iostream>

int main() {
    // Declaration of variables
    int integerVariable;
    float floatVariable;
    char charVariable;

    // Initialization of variables
    integerVariable = 10;
    floatVariable = 3.14f;
    charVariable = 'A';

    // Output values
    std::cout << "Integer Variable: " << integerVariable << std::endl;
    std::cout << "Float Variable: " << floatVariable << std::endl;
    std::cout << "Char Variable: " << charVariable << std::endl;

    // Modification of variables
    integerVariable = 20;
    floatVariable = 2.71f;
    charVariable = 'B';

    // Output modified values
    std::cout << "Modified Integer Variable: " << integerVariable << std::endl;
    std::cout << "Modified Float Variable: " << floatVariable << std::endl;
    std::cout << "Modified Char Variable: " << charVariable << std::endl;

    return 0;
}