Mostrar números primos entre dos intervalos. C++

#cpp #números

Mostrar números primos entre dos intervalos

C++

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#include <iostream>
using namespace std;
​
int main() {
    int low, high, i;
    bool isPrime = true;
​
    cout << "Enter two numbers (intervals): ";
    cin >> low >> high;
​
    cout << "\nPrime numbers between " << low << " and " << high << " are: " << endl;
​
    while (low < high) {
        isPrime = true;
        if (low == 0 || low == 1) {
            isPrime = false;
        }
        else {
            for (i = 2; i <= low / 2; ++i) {
                if (low % i == 0) {
                    isPrime = false;
                    break;
                }
            }
        }
        
        if (isPrime)
            cout << low << " ";
​
        ++low;
    }
​
    return 0;
}

Output result

Enter two numbers (intervals): 0 20

Prime numbers between 0 and 20 are: 
2 3 5 7 11 13 17 19

Mostrar números primos cuando se ingresa primero el número más grande

C++

xxxxxxxxxx
 
#include <iostream>
using namespace std;
​
int main()
{
    int low, high, temp, i;
    bool isPrime;
    
    cout << "Enter two numbers (intevals): ";
    cin >> low >> high;
​
 
    if (low > high) {
        temp = low;
        low = high;
        high = temp;
    }
    cout << "\nPrime numbers between " << low << " and " << high << " are:" << endl;
​
    while (low < high) {
        isPrime = true;
        if (low == 0 || low == 1) {
            isPrime = false;
        }
        else {
            for (i = 2; i <= low / 2; ++i) {
                if (low % i == 0) {
                    isPrime = false;
                    break;
                }
            }
        }
​
        if (isPrime)
            cout << low << " ";
​
        ++low;
    }
    return 0;
}

Output result

Enter two numbers (intervals): 20 0

Prime numbers between 0 and 20 are: 
2 3 5 7 11 13 17 19

C++

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Mostrar números primos entre dos intervalos. C++

C++

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