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2d vector cpp

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Om Gharge answered on June 19, 2020 Popularity 9/10 Helpfulness 5/10

answer 2d vector cpp

related how to make a 2d vector in c++

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2d vector cpp

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For user defined size:

vector<vector<int>> vec( n ); 
where n -> number of rows

vector<vector<int>> vec( n , vector<int> (m, 0)); 
where n -> number of rows
where m -> number of columns (all initialized with 0)

Popularity 9/10 Helpfulness 5/10 Language cpp

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Contributed on Oct 22 2022

Om Gharge

0 Answers Avg Quality 2/10

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how to make a 2d vector in c++

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// Create a vector containing n 
//vectors of size m, all u=initialized with 0
vector<vector<int> > vec( n , vector<int> (m, 0));

Popularity 10/10 Helpfulness 6/10 Language cpp

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Contributed on Jun 19 2020

Tanishq Vyas

0 Answers Avg Quality 2/10

2D vector in cpp

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// CPP program
#include <iostream>
#include <vector>
using namespace std;
int main()
{
    int n = 3;
    int m = 4;
  
    /*
    We create a 2D vector containing "n"
    elements each having the value "vector<int> (m, 0)".
    "vector<int> (m, 0)" means a vector having "m"
    elements each of value "0".
    Here these elements are vectors.
    */
    vector<vector<int>> vec( n , vector<int> (m, 0)); 
  
    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < m; j++)
        {
            cout << vec[i][j] << " ";
        }
        cout<< endl;
    }
      
    return 0;
}

Popularity 10/10 Helpfulness 4/10 Language cpp

Source: www.geeksforgeeks.org

Tags: 2d-vector 2d-v

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Contributed on Sep 26 2022

Sleepy Head

0 Answers Avg Quality 2/10

2D vector in cpp

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// CPP program
#include <iostream>
#include <vector>
using namespace std;
int main()
{
    int n = 3;
    int m = 4;
  
    /*
    We create a 2D vector containing "n"
    elements each having the value "vector<int> (m, 0)".
    "vector<int> (m, 0)" means a vector having "m"
    elements each of value "0".
    Here these elements are vectors.
    */
    vector<vector<int>> vec( n , vector<int> (m, 0)); 
  
    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < m; j++)
        {
            cout << vec[i][j] << " ";
        }
        cout<< endl;
    }
      
    return 0;
}

Popularity 10/10 Helpfulness 4/10 Language cpp

Source: www.geeksforgeeks.org

Tags: 2d-vector 2d-v

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Contributed on Sep 26 2022

Sleepy Head

0 Answers Avg Quality 2/10

2d vector cpp

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