creating an array of arrays or 2D array dynamically

Danny Gold answered on June 28, 2022 Popularity 2/10 Helpfulness 1/10

answer creating an array of arrays or 2D array dynamically

related how to make dynamic 2 d array

creating an array of arrays or 2D array dynamically

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int ** arr = malloc(N*sizeof(int *));
for(i=0; i< N; i++) arr[i] = malloc(M*sizeof(int));

/* or you can use this simpler version*/
int (*arr)[M] = malloc(sizeof(int[N][M]));
/*  arr is pointer to int[M]
	use like arr[0][M-1];
	and free(arr); 
*/

Popularity 2/10 Helpfulness 1/10 Language c

Source: stackoverflow.com

Tags: 2d arrays c

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Contributed on Jun 28 2022

Danny Gold

0 Answers Avg Quality 2/10

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how to make dynamic 2 d array

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// Declare memory block of size M
    int** a = new int*[m];
 
    for (int i = 0; i < m; i++) {
 
        // Declare a memory block
        // of size n
        a[i] = new int[n];
    }

Popularity 3/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: whatever dynamic d

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Contributed on Feb 06 2023

Abdulrahman Abdulkareem

0 Answers Avg Quality 2/10

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creating an array of arrays or 2D array dynamically

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