Sir can ypu guide me what is wrong in this code.It is the code for array wave print column wise

#1

#include
using namespace std;
int main()
{
int a[10][10];
int rows,columns,i,j;
//r-rows
cin>>rows;
cin>>columns;
for(i=0;i<rows;i++)
{
for(j=0;j<columns;j++)
{
cin>>a[i][j];
}

}


for(j=0;j<columns;j++)
{
    if(j%2==0)
    {

        for(i=0;i<rows;i++)
        {
            cout<<a[i][j]<<",";
        }
    }
    else
    {
        for(i=rows-1;i>=0;i--)
        {
            cout<<a[i][j]<<",";
        }
    }
}

cout<<"END";
return 0;

}

#2

@harshulgarg21
Your approach is correct. The problem is with your output format. You missed to print the space after each comma.

#3

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