Question

Write a C program that uses mallloc to create a 2D array. of c columns and r rows.

Elements of array must be initialized to 0 and you must use malloc and free allocated memory fo array.

Answer 1

ANSWER:-

#include <stdio.h>

int main(void) {

int r, c;

printf("enter the row : ");

scanf("%d",&r);

printf("enter the column : ");

scanf("%d",&c);

int *arr = (int *)malloc(r * c * sizeof(int));

int i, j, count = 0;

for (i = 0; i < r; i++)

for (j = 0; j < c; j++)

*(arr + i*c + j) =count;

for (i = 0; i < r; i++)

{

for (j = 0; j < c; j++)

{

printf("%d ", *(arr + i*c + j));

}

printf("\n");

}

free(arr);

return 0;

}

// OUTPUT

Success #stdin #stdout 0s 4216KB enter the row:3 enter the column3 0 e e 0 e e

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