in this code why you write
int**arr=new int*[n];
this lines whats indicate and without pointer how to write this line
for(int i=0 ; i<n ; i++)
{
arr[i]=new int[m];
}
what is the work in this code
int main(int argc ,char const *argv[ ])
why u write after main i.e. inside main parenthesis
hello @vishal_sangal_123
here we are declaring 2 d array dynamically . u will learn abut it in dynamic memory allocation playlist.
int arr[n][m];// this way also u can declare 2d array but it will be allocated over stack memory.
these are command line arguments , pls ignore or remove them ,we never use them in our program
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