For auto map C

#include <iostream>
#include <map>

int main() {
    std::map<char, int> charCount; // Step 1: Declare a map with key type char and value type int

    std::string inputString;
    std::cout << "Enter a string: ";
    std::getline(std::cin, inputString); // Step 2: Accept a string input

    for (char c : inputString) {
        if (isalpha(c)) {
            charCount[c]++; // Step 3: Increment the count for each character in the map
        }
    }

    std::cout << "Character frequency:\n";
    for (const auto& pair : charCount) {
        std::cout << pair.first << ": " << pair.second << "\n"; // Step 4: Display the character frequency
    }

    return 0;
}