Array wave generation

#1

sir i dont uncerstanding why my cases are having worng answer in cheked it manually on dev by pasting the same code multiple time and running on different output
#include
using namespace std;
int main() {
int i,j;
int M,N;
cin>>M>>N;
if(11>M>0 && 11>N>0)
{
int arr[M][N];
for(i=0;i<M;i++)
{
for(j=0;j<N;j++)

    {
        cin>>arr[i][j];
    }
}
for(i=0;i<M;i++)
{ 
    if(i==0)
    { 
       for(j=0;j<N;j++)
       {
           cout<<arr[j][i]<<", ";
       }  
    } 
    if(i==1)
    {
        for(j=N-1;j>=0;j--)
        {
            cout<<arr[j][i]<<", ";
        }
    }
        
    
    if(i>=2 && i%2==0)
    {
        for(j=0;j<N;j++)
       {
           cout<<arr[j][i]<<", ";
       } 
        
    }
     if(i>=2 && i%2!=0)
    {
        for(j=N-1;j>=0;j--)
       {
           cout<<arr[j][i]<<", ";
       } 
        
    }
}

cout<<"END";
}

return 0;

}

#2

Hi @sourabhsingh282
When you are printing the array you have used N and M at each others place. Just replace all N by M and vice versa in the for loop and if conditions after taking inputs from user.

Here is your corrected code :

https://ide.codingblocks.com/s/165479

#3

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