03. Symbol in Matrix

#include <iostream>
#include <vector>

using namespace std;

int main() {
    int n;
    cin >> n;

    char el;

    vector<vector<int>> matrix;

    for (int i = 0; i < n; i++) {
        vector<int> currentRow;
        for (int j = 0; j < n; j++) {
            cin >> el;
            currentRow.push_back(el);
        }
        matrix.push_back(currentRow);
    }

    char symbol;
    cin >> symbol;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (matrix[i][j] == symbol) {
                printf("(%i, %i)\n", i, j);
                return 0;
            }
        }
    }

    printf("%c does not occur in the matrix\n", symbol);
    return 0;
}