Discussion on Variable Sized Arrays Challenge

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2 weeks ago+ 0 comments

Great topic to start with! Variable Sized Arrays (VSAs) C++ mein ek interesting concept hai, especially jab aapko runtime pe array size decide karna ho. Tigerexch 247 Login ID and Password

3 weeks ago+ 0 comments

hey guys, i once gave up learning C++ because of pointer. Pls rate my code.

int main()
{
   
    int n, q;
    cin >> n >> q;
    vector<int *> v;
    for (int i = 0; i < n; i++)
    {
        int size;
        cin >> size;
        int *A = new int[size];
        for (int j = 0; j < size; j++)
        {
            cin >> A[j];
        }
        v.push_back(A);
    }

    for (int time = 1; time <= q; time++)
    {
        int i, j;
        cin >> i >> j;
        cout << v[i][j] << "\n";
    }

    for (int i = 0; i < n; i++)
    {
        delete[] v[i];
    }

    return 0;
}

4 weeks ago+ 0 comments

int main() {

int n, q;
cin >> n >> q;
int** pt = new int*[n];

for (int i = 0; i < n; i++)
{
    int k;

    cin >> k;
    pt[i] = new int[k];

    for (int j = 0; j < k; j++)
    {
        int val;
        cin >> val;
        pt[i][j] = val;
    }
}

for (int a = 0; a < q; a++)
{
    int i = 0;
    cin >> i;
    int j = 0;
    cin >> j;

    cout << pt[i][j] << endl;
}
return 0;

}

1 month ago+ 0 comments

hey Guys...I am from Banglaesh...I tried to write a very simple solution...

ll n,q; cin>>n>>q;

ll k,num;
vector<vector<int>>v(n);
for(int i=0; i<n; i++)
{
    cin>>k;
    for(int j=0; j<k; j++)
    {
        cin>>num;
        v[i].push_back(num);
    }
}

ll i,j;

for(int x=0; x<q; x++)
{
    cin>>i>>j;
    cout<<v[i][j]<<endl;

}

}

1 month ago+ 0 comments

I tried to keep it as simple and self explanatory as possible:

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {

    int n = 0, q = 0, k = 0, number = 0;
    
    cin >> n >> q;
    vector<vector<int>> va(n);
    
    for (int i = 0; i < n; i++)
    {
        cin >> k;
        for (int j = 0; j < k; j++)
        {
            cin >> number;
            va.at(i).push_back(number);
        }
    }
    
    int i = 0, j = 0;
    for (int l = 0; l < q; l++)
    {
        cin >> i >> j;
        cout << va.at(i).at(j) << endl;
    }

    return 0;
}

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