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URI Problem 2493 solution.

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  • main.cpp
main.cpp
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#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main() {

    int n;

    while(scanf_s("%d" , &n) != EOF) {

        int testCases = n;
        while(testCases > 0) {

            int i = 0;
            string arr[n];

            while (i < n) {

                string solution;

                int firstValue, secondValue, thirdValue;
                scanf_s("%s %s=%s", &firstValue, &secondValue, &thirdValue);

                if(firstValue + secondValue == thirdValue) solution = "+";
                else if(firstValue - secondValue == thirdValue) solution = "-";
                else solution = "*";

                arr[i] = solution;

                i++;
            }

            int j = 0;
            vector<string> rightPeople;

            int k = 0;
            while (j < n) {

                int questionNumber;
                string name, operatorName;
                scanf_s("%s %s %s", &name, &questionNumber, &operatorName);

                if(arr[questionNumber] == operatorName) rightPeople.assign(k++, name);

                i++;
            }

            if(rightPeople.size() == n) cout << "You Shall All Pass!" << endl;
            else if(rightPeople.empty()) cout << "None Shall Pass!" << endl;
            else {

                sort(rightPeople.begin(), rightPeople.end());

                for (auto const& item: rightPeople) {
                    std::cout << item << " ";
                }
            }

            --testCases;
        }
    }
}
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