garbage value is being printed!
#include
using namespace std;
int main() {
int r,c;
cin>>r;
cin>>c;
int a[r][c];
for(int i=0;i<r;i++){
for(int j=0;j<c;j++){
cin>>a[r][c];
}
}
for(int i=0;i<c;i++){
if(i%2==0){
for(int j=0;j<r;j++){
cout<<a[j][i]<<",";
}
}
else
for(int j=r;j>=0;j--){
cout<<a[j][i]<<",";
}
}
cout<<"END";
return 0;
}