2d array c++

2-Dimensional array in c++

int row,col;
cout << "please input how many rows and columns you want accordingly: ";
cin>>row>>col;
//create array in heap.
int **arr=new int*[row];
for(int i=0;i<row;i++)
{
    arr[i]=new int[col];
}
//getting value from user.
for(int i=0;i<row;i++)
{
    for(int j=0;j<col;j++)
    {
        cout<<"Enter a number ";
        cin>>arr[i][j];
    }
}
//display Elements.
    for(int i=0;i<row;i++)
{
    for(int j=0;j<col;j++)
    {
        cout<<arr[i][j]<<" ";
    }
}

return 0;

Source: stackoverflow.com

Get elements of 2d array c++

void printMatrix(array<array<int, COLS>, ROWS> matrix){
for (auto row : matrix){
//auto infers that row is of type array<int, COLS>
for (auto element : row){
cout << element << ' ';
}
cout << endl;
}

Similar codes

6 votes106 views2 answers
How to print double value up to 9 decimal places in c++
C++
0 vote123 views1 answer
C++ random int troll
C++
1 vote97 views1 answer
Detect cycle in an undirected graph
C++
0 vote100 views1 answer
Traverse string in cpp
C++
0 vote105 views1 answer
Phi function
C++
-1 vote98 views1 answer
How to make a hello world program in c++
C++
0 vote93 views1 answer
#include <stdio.h> cpp
C++
1 vote100 views1 answer
Regex for phone number c++
C++
0 vote115 views1 answer
C++ class constructor variable arguments
C++
20 votes104 views1 answer
Flutter convert datetime in day of month
C++