09. Sum of Two Numbers

#include <iostream>

using namespace std;

int main() {

    int firstNum, secondNum, magicNum, combinations = 0;
    cin >> firstNum >> secondNum >> magicNum;

    bool isFound = false;

    for (int i = firstNum; i <= secondNum; i++) {
        for (int j = firstNum; j <= secondNum; j++) {
            combinations++;
            if (i + j == magicNum) {
                cout << "Combination N:" << combinations << " (" << i << " + " << j << " = " << magicNum << ")" << endl;
                isFound = true;
                break;
            }
        }
        if (isFound) {
            break;
        }
    }
    if (isFound == false) {
        cout << combinations << " combinations - neither equals " << magicNum << endl;
    }

    return 0;
}