Question

С клавиатуры вводится четырёхзначное число. вывести на экран максимальную цифру из этого числа. можно/надо пользоваться : Оператор ввода , вывода , цикла , целочисленное деление , получение остатков деления

Answer 1

Task: Find the maximum digit from a four-digit number

To find the maximum digit from a four-digit number, you can use the following steps:

1. Read the four-digit number from the keyboard. 2. Initialize a variable, let's say `max_digit`, to store the maximum digit. Set its initial value to 0. 3. Use a loop to iterate through each digit of the number. 4. Extract each digit from the number using the modulo operator `%` and integer division `//`. 5. Compare each digit with the current maximum digit. If the digit is greater than the current maximum digit, update the `max_digit` variable. 6. Repeat steps 4 and 5 for all the digits of the number. 7. After the loop ends, the `max_digit` variable will contain the maximum digit from the number. 8. Print the value of `max_digit` on the screen.

Here is an example implementation in C++:

#include

int main() {
    int number;
    std::cout << "Enter a four-digit number: ";
    std::cin >> number;

int max_digit = 0;
    int digit;

for (int i = 0; i < 4; i++) {
        digit = number % 10;
        number = number / 10;

if (digit > max_digit) {
            max_digit = digit;
        }
    }

std::cout << "The maximum digit is: " << max_digit << std::endl;

return 0;
}

Please note that this code assumes the user will always input a valid four-digit number. You may want to add additional input validation to handle cases where the user enters an invalid input.

I hope this helps! Let me know if you have any further questions.