What is the difference between the two wording when the two-dimensional array is a function parameter?

What is the difference between the two wording when the two-dimensional array is a function parameter?

#include <bits/stdc++.h>
#include <windows.h>
using namespace std;

void dfs(int (*a)[10]){
    for(int i=0;i<5;i++){
        for(int j=0;j<10;j++){
            cout<<a[i][j]<<" ";
        }
    }
}
void dfs2(int a[][10]){
    for(int i=0;i<5;i++){
        for(int j=0;j<10;j++){
            cout<<a[i][j]<<" ";
        }
    }
}
int main(){

    int (*a)[10]=new int[5][10];
    for(int i=0;i<5;i++){
        for(int j=0;j<10;j++){
            a[i][j]=i*j;
        }
    }
    dfs(a);
    dfs2(a);
    delete []a;
    return 0;
}

dfs(int (*a)[10]) and dfs2(int a[][10]) all can work,I want to know when the array very large,Will that be efficient?