Dynamic 2d array allocation error

#1

#include
using namespace std;
int main() {
int n,m;
cin>>n>>m;
int arr = new int[n];
for(int i=0;i<n;i++) {
arr[i] = new int[m];
}

for(int i=0;i<n;i++) {
    for(int j=0;j<n;j++) {
        cin>>arr[i][j];
    }
}


return 0;

}

error is
‘int*’ in initialization
int arr = new int[n];
^
subarr.cpp:8:18: error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive]
arr[i] = new int[m];
^~~~~~~~~~
subarr.cpp:13:26: error: invalid types ‘int[int]’ for array subscript
cin>>arr[i][j];
^

#2

Hello @kartikaydwivedi55 i have corrected your code.
for 2-D Allocation it should be of type pointer to pointer.


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#3

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