1. What I learned

    How to change a data type

        When changing a data type, use ‘static_cast(DATA_TYPE_TO_CHANGE)'.

2. Code

#include <iostream>

using namespace std;

int main(void) {
    char ch;
    cin >> ch;

    cout << static_cast<int>(ch) << '\n';
    return 0;
}

3. Result

        Runtime : 0 ms, Memory usage : 2016 KB
        (Runtime can be different by a system even if it is a same code.)

Check out the my GitHub repo for more info on the code. If you have questions, you can leave a reply on this post.