Просмотр поста

#include <iostream>
using namespace std;
main (){
        int one, two, sum, i, length;
        int arr[5] = {1, 2, 3, 4, 5};
        bool contains;   
        contains = false;
        cout << "One: "; 
        cin >> one;
        cout << "Two: ";
        cin >> two;
        sum = one + two;
        cout << "Sum: " << sum << "\n";
        length = sizeof(arr);
        for (i = 0 ; i < length ; i++) {
                if (arr[i] == sum){
                        contains = true;
                        break;
                } 
        }

        if (contains) {
                cout << "Is exists\n";
        } else {
                cout << "Does not exists\n";
        }

        return 0;
}