parallel_arrays.cpp

#include <iostream>

int main(int argc, char* argv[]) {
    const int SIZE = 12;
    std::string* months = new std::string[SIZE];
    int* max_days = new int[SIZE];

    months[0] = "january";
    max_days[0] = 31;

    months[1] = "february";
    max_days[1] = 29;

    months[2] = "march";
    max_days[2] = 31;

    months[3] = "april";
    max_days[3] = 30;

    months[4] = "may";
    max_days[4] = 31;

    std::string user_selection = static_cast<std::string>(argv[1]);

    // Loopup index of month
    int selected_month_index = -1;
    for(int i = 0; i < SIZE; i++){
        if(months[i] == user_selection){
            selected_month_index = i;
        }
    }

    if(selected_month_index > -1){
        std::cout << "The number of days in " << user_selection << " is " << max_days[selected_month_index] << std::endl;
    }else{
        std::cout << "Incorrect Selection" << std::endl;
    }

    return 0;
}