Question

Write a C++ function that initializes all the elements of M × N matrix mat to 0.

Answer 1

#include<iostream>
using namespace std;
void calc(int *mat,int M,int N){ //function to initialize elements of M × N matrix mat to 0.
for(int i=0;i<M;i++)
for (int j=0;j<N;j++)
*((mat+i*N)+j)=0;
}
int main() //main function to enter value of M and N
{
int M,N;
cout<<"Enter M and N :";
cin>>M>>N;
int mat[M][N];
calc((int *)mat, M, N);
for(int i=0;i<M;i++){
for (int j=0;j<N;j++)
cout<<mat[i][j]; //prints the value inside Mat
cout<<endl;
}
}