04. Sum of Two Numbers

#include <iostream>

using namespace std;

int main() {

    int startNum, endNum, magicNum;
    cin >> startNum >> endNum >> magicNum;

    bool isMagic = false;

    int counter = 0;

    for (int i = startNum; i <= endNum; i++) {
        for (int j = startNum; j <= endNum; j++) {
            counter++;
            if (i + j == magicNum) {
                cout << "Combination N:" << counter << " (" << i << " + " << j << " = " << magicNum << ")" << endl;
                isMagic = true;
                break;
            }
        }
        if (isMagic == true) {
            break;
        }
    }

    if (isMagic == false) {
        cout << counter << " combinations - neither equals " << magicNum << endl;
    }

    return 0;
}