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

0 vote236 views1 answer
How to declare a vector of int in c++
C++
0 vote243 views1 answer
How to change the value of a key in hashmp in c++
C++
0 vote271 views1 answer
C++ functions dynamic vector
C++
2 votes234 views2 answers
What is typedef
C++
0 vote212 views1 answer
Queue cpp
C++
1 vote240 views1 answer
C++ nested switch statements
C++
0 vote229 views1 answer
Display dot product of two Arrays.
C++
0 vote226 views1 answer
Hola mundo c++
C++
0 vote304 views1 answer
Two dimensional array A[N,M] with the random numbers from 10 to 90.
C++
0 vote274 views1 answer
C++ if bool true
C++