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  1. Prepare
  2. C++
  3. Introduction
  4. Variable Sized Arrays
  5. Discussions

Variable Sized Arrays

  • lauriewu1
     + 20 comments

    I did it this way. passed all tests. Seems to be cleaner than other solutions here. 

    int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n,q,k,i,j;
    cin >> n >> q;
    vector<vector<int> >arr(n);
    for (i=0; i<n; ++i){
        cin >> k;
        arr[i].resize(k);
        for(j=0 ; j<k; ++j){
            cin >> arr[i][j];
        }       
    }

    for(int l=0; l<q; ++l){
        cin >> i >> j;
        cout << arr[i][j]<<endl;
    }  
        
    return 0;
}