We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. C++
  3. Introduction
  4. Variable Sized Arrays
  5. Discussions

Variable Sized Arrays

  • iliussagar
     + 0 comments

    int main() { /* Enter your code here. Read input from STDIN. Print output to STDOUT */
    int n, q; cin >> n >> q; // number of arrays and number of queries

    vector<vector<int>> arr(n);

// input arrays
for (int i = 0; i < n; i++) {
    int k;
    cin >> k;   // size of this array
    arr[i].resize(k);
    for (int j = 0; j < k; j++) {
        cin >> arr[i][j];
    }
}

// answer queries
for (int i = 0; i < q; i++) {
    int M, N;
    cin >> M >> N;
    cout << arr[M][N] << endl;
}
return 0;

    }