08. Equal Pairs

#include <iostream>

using namespace std;

int main() {
    int pairCount, firstNum, secondNum;
    cin >> pairCount >> firstNum >> secondNum;

    int equalValue = firstNum + secondNum;
    int maxdiff = 0;

    for (int i = 1; i < pairCount; i++) {
        cin >> firstNum >> secondNum;

        int currentValue = firstNum + secondNum;
        int currentDiff = abs(equalValue - currentValue);

        if (currentDiff > maxdiff) {
            maxdiff = currentDiff;
        }
        else {
            equalValue = currentValue;
        }
    }

    if (maxdiff == 0) {
        cout << "Yes, value=" << equalValue << endl;
    }
    else {
        cout << "No, maxdiff=" << maxdiff << endl;
    }

    return 0;
}

Решение с тернарен оператор:

#include <iostream>
#include <string>

using namespace std;

int main() {
    int pairCount, firstNum, secondNum;
    cin >> pairCount >> firstNum >> secondNum;

    int equalValue = firstNum + secondNum;
    int maxdiff = 0;

    for (int i = 1; i < pairCount; i++) {
        cin >> firstNum >> secondNum;

        int currentValue = firstNum + secondNum;
        int currentDiff = abs(equalValue - currentValue);

        currentDiff > maxdiff ? maxdiff = currentDiff : equalValue = currentValue;
    }

    cout << (maxdiff == 0 ? "Yes, value=" + to_string(equalValue) : "No, maxdiff=" + to_string(maxdiff)) << endl;

    return 0;
}