CS Assignment 161 #2.cpp

// Brandan Tyler Lasley
// Sources: None
// 10/6/2013 20:44
// This program checks and tests for a magic square.

#include <iostream>
#include <string>
using namespace std;

int main () {
    // Declare Varibles
    int square[16];

    cout << "Welcome to Brandan's Magic Square Checker!" << endl << endl;
    cout << "Please enter a magic square! Do NOT exceed 16 (ex. 1 2 3 4 5 6... etc)" << endl;

    // Begain square collection loop.
    int i = 0;
    do {
        /* Delete this if you want a more user friendly approach.
        cout << "Please enter a number [" << i + 1 << "\\16]  ";*/

        cin >> square[i];
        i++;
    } while (i < 16);

    // Calcuate and declare calcuation varibles 1
    int sum_r1 = 0;
    int sum_r2 = 0;
    int sum_r3 = 0;
    int sum_r4 = 0;
    int i2 = 0;

    // Loop array and calcuate
    for each(int sqr in square) {
        if (i2 < 4) {
            sum_r1 = sum_r1 + sqr;
        } else if (i2 < 8) {
            sum_r2 = sum_r2 + sqr;
        } else if (i2 < 12) {
            sum_r3 = sum_r3 + sqr;
        } else if (i2 < 16) {
            sum_r4 = sum_r4 + sqr;
        }
        i2++;
    }


    // Check if square or not.
    if (sum_r1 == sum_r2 && sum_r2 == sum_r3 && sum_r3 == sum_r4 && sum_r1) {
        cout << endl << "Magic Square!" << endl;
    } else {
        cout << endl << "This is NOT a magic square!!" << endl;
    }


    // Exit footer
    getchar();
    getchar();
    return 0;
}