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

5 votes205 views3 answers
Rand in C++
C++
213 votes286 views2 answers
C++ switch
C++
0 vote215 views1 answer
First and last digit of a number in c++
C++
1 vote203 views1 answer
Insert binary search tree
C++
0 vote224 views1 answer
High school hacking competition
C++
0 vote225 views2 answers
Ex:c programming
C++
9 votes223 views3 answers
C++ find element in vector
C++
0 vote208 views1 answer
Leetcode fast io c++
C++
0 vote176 views1 answer
Properties of loop in c++ and how it works
C++
19 votes196 views1 answer
Access last element in vector in c++
C++