01. Compare Matrices

#include <iostream>
#include <sstream>
#include <string>
#include <vector>

using namespace std;

int main() {
    int n, el;
    cin >> n;
    cin.ignore();

    string line;

    vector<vector<int>> matrix1;

    for (int i = 0; i < n; i++) {
        vector<int> row;
        getline(cin, line);
        istringstream ss(line);

        while (ss >> el) {
            row.push_back(el);
        }

        matrix1.push_back(row);
    }

    int n2, el2;
    cin >> n2;
    cin.ignore();

    string line2;

    vector<vector<int>> matrix2;

    for (int i = 0; i < n2; i++) {
        vector<int> row;
        getline(cin, line2);
        istringstream ss(line2);

        while (ss >> el2) {
            row.push_back(el2);
        }

        matrix2.push_back(row);
    }

    bool isequal = true;

    if (matrix1.size() != matrix2.size()) {
        isequal = false;
    }
    else {
        for (int i = 0; i < matrix1.size(); i++) {
            if (matrix1[i].size() != matrix2[i].size()) {
                isequal = false;
            }
            else {
                for (int j = 0; j < matrix1[i].size(); j++) {
                    if (matrix1[i][j] != matrix2[i][j]) {
                        isequal = false;
                        break;
                    }
                }
            }
            if (!isequal) {
                break;
            }
        }
    }

    cout << (isequal ? "equal" : "not equal") << endl;
    return 0;
}

Tarikat edition - don't do this at work:)

#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main() {
    int n, n2;
    cin >> n;
    cin.ignore();

    string line;

    vector<string> matrix1;

    for (int i = 0; i < n; i++) {
        getline(cin, line);
        matrix1.push_back(line);
    }

    cin >> n2;
    cin.ignore();

    if (n != n2) {
        cout << "not ";
    }
    else {
        for (int i = 0; i < matrix1.size(); i++) {
            getline(cin, line);
            if (matrix1[i] != line) {
                cout << "not ";
                break;
            }
        }
    }

    cout << "equal" << endl;
    return 0;
}