Question

Write a small c++ program to validate user input is within a range

• Prompt the user to enter a guess between 1 and 100
• Keep prompting on bad numeric input to get valid number
• What happens to your program when you input non-numeric data? You can learn about that later

Answer 1

#include <iostream>

using namespace std;

int main() {
    int num;
    do {
        cout << "Enter a number(between 1 and 100): ";
        cin >> num;
    } while (num < 1 || num > 100);
    cout << "You entered " << num << endl;
    return 0;
}

/*
If a non-numeric data is entered, then the program keeps on prompting for input forever and does not read any other input.
so, essentially program does not work properly.
*/